21039480

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1$

素因数の和:72

約数の個数: 384

約数和(自身を含む): 91929600

約数和(自身を除く): 70890120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 23, 24, 27, 28, 30, 33, 35, 36, 40, 42, 44, 45, 46, 54, 55, 56, 60, 63, 66, 69, 70, 72, 77, 84, 88, 90, 92, 99, 105, 108, 110, 115, 120, 121, 126, 132, 135, 138, 140, 154, 161, 165, 168, 180, 184, 189, 198, 207, 210, 216, 220, 230, 231, 242, 252, 253, 264, 270, 276, 280, 297, 308, 315, 322, 330, 345, 360, 363, 378, 385, 396, 414, 420, 440, 460, 462, 483, 484, 495, 504, 506, 540, 552, 594, 605, 616, 621, 630, 644, 660, 690, 693, 726, 756, 759, 770, 792, 805, 828, 840, 847, 920, 924, 945, 966, 968, 990, 1012, 1035, 1080, 1089, 1155, 1188, 1210, 1242, 1260, 1265, 1288, 1320, 1380, 1386, 1449, 1452, 1485, 1512, 1518, 1540, 1610, 1656, 1694, 1771, 1815, 1848, 1890, 1932, 1980, 2024, 2070, 2079, 2178, 2277, 2310, 2376, 2415, 2420, 2484, 2520, 2530, 2541, 2760, 2772, 2783, 2898, 2904, 2970, 3036, 3080, 3105, 3220, 3267, 3388, 3465, 3542, 3630, 3780, 3795, 3864, 3960, 4140, 4158, 4235, 4347, 4356, 4554, 4620, 4830, 4840, 4968, 5060, 5082, 5313, 5445, 5544, 5566, 5796, 5940, 6072, 6210, 6440, 6534, 6776, 6831, 6930, 7084, 7245, 7260, 7560, 7590, 7623, 8280, 8316, 8349, 8470, 8694, 8712, 8855, 9108, 9240, 9660, 10120, 10164, 10395, 10626, 10890, 11132, 11385, 11592, 11880, 12420, 12705, 13068, 13662, 13860, 13915, 14168, 14490, 14520, 15180, 15246, 15939, 16335, 16632, 16698, 16940, 17388, 17710, 18216, 19320, 19481, 20328, 20790, 21252, 21735, 21780, 22264, 22770, 22869, 24840, 25047, 25410, 26136, 26565, 27324, 27720, 27830, 28980, 30360, 30492, 31878, 32670, 33396, 33880, 34155, 34776, 35420, 38115, 38962, 41580, 41745, 42504, 43470, 43560, 45540, 45738, 47817, 50094, 50820, 53130, 54648, 55660, 57960, 58443, 60984, 63756, 65340, 66792, 68310, 70840, 75141, 76230, 77924, 79695, 83160, 83490, 86940, 91080, 91476, 95634, 97405, 100188, 101640, 106260, 111320, 114345, 116886, 125235, 127512, 130680, 136620, 150282, 152460, 155848, 159390, 166980, 173880, 175329, 182952, 191268, 194810, 200376, 212520, 228690, 233772, 239085, 250470, 273240, 292215, 300564, 304920, 318780, 333960, 350658, 375705, 382536, 389620, 457380, 467544, 478170, 500940, 525987, 584430, 601128, 637560, 701316, 751410, 779240, 876645, 914760, 956340, 1001880, 1051974, 1168860, 1402632, 1502820, 1753290, 1912680, 2103948, 2337720, 2629935, 3005640, 3506580, 4207896, 5259870, 7013160, 10519740, 21039480]

約数ペア:

[(1, 21039480), (2, 10519740), (3, 7013160), (4, 5259870), (5, 4207896), (6, 3506580), (7, 3005640), (8, 2629935), (9, 2337720), (10, 2103948), (11, 1912680), (12, 1753290), (14, 1502820), (15, 1402632), (18, 1168860), (20, 1051974), (21, 1001880), (22, 956340), (23, 914760), (24, 876645), (27, 779240), (28, 751410), (30, 701316), (33, 637560), (35, 601128), (36, 584430), (40, 525987), (42, 500940), (44, 478170), (45, 467544), (46, 457380), (54, 389620), (55, 382536), (56, 375705), (60, 350658), (63, 333960), (66, 318780), (69, 304920), (70, 300564), (72, 292215), (77, 273240), (84, 250470), (88, 239085), (90, 233772), (92, 228690), (99, 212520), (105, 200376), (108, 194810), (110, 191268), (115, 182952), (120, 175329), (121, 173880), (126, 166980), (132, 159390), (135, 155848), (138, 152460), (140, 150282), (154, 136620), (161, 130680), (165, 127512), (168, 125235), (180, 116886), (184, 114345), (189, 111320), (198, 106260), (207, 101640), (210, 100188), (216, 97405), (220, 95634), (230, 91476), (231, 91080), (242, 86940), (252, 83490), (253, 83160), (264, 79695), (270, 77924), (276, 76230), (280, 75141), (297, 70840), (308, 68310), (315, 66792), (322, 65340), (330, 63756), (345, 60984), (360, 58443), (363, 57960), (378, 55660), (385, 54648), (396, 53130), (414, 50820), (420, 50094), (440, 47817), (460, 45738), (462, 45540), (483, 43560), (484, 43470), (495, 42504), (504, 41745), (506, 41580), (540, 38962), (552, 38115), (594, 35420), (605, 34776), (616, 34155), (621, 33880), (630, 33396), (644, 32670), (660, 31878), (690, 30492), (693, 30360), (726, 28980), (756, 27830), (759, 27720), (770, 27324), (792, 26565), (805, 26136), (828, 25410), (840, 25047), (847, 24840), (920, 22869), (924, 22770), (945, 22264), (966, 21780), (968, 21735), (990, 21252), (1012, 20790), (1035, 20328), (1080, 19481), (1089, 19320), (1155, 18216), (1188, 17710), (1210, 17388), (1242, 16940), (1260, 16698), (1265, 16632), (1288, 16335), (1320, 15939), (1380, 15246), (1386, 15180), (1449, 14520), (1452, 14490), (1485, 14168), (1512, 13915), (1518, 13860), (1540, 13662), (1610, 13068), (1656, 12705), (1694, 12420), (1771, 11880), (1815, 11592), (1848, 11385), (1890, 11132), (1932, 10890), (1980, 10626), (2024, 10395), (2070, 10164), (2079, 10120), (2178, 9660), (2277, 9240), (2310, 9108), (2376, 8855), (2415, 8712), (2420, 8694), (2484, 8470), (2520, 8349), (2530, 8316), (2541, 8280), (2760, 7623), (2772, 7590), (2783, 7560), (2898, 7260), (2904, 7245), (2970, 7084), (3036, 6930), (3080, 6831), (3105, 6776), (3220, 6534), (3267, 6440), (3388, 6210), (3465, 6072), (3542, 5940), (3630, 5796), (3780, 5566), (3795, 5544), (3864, 5445), (3960, 5313), (4140, 5082), (4158, 5060), (4235, 4968), (4347, 4840), (4356, 4830), (4554, 4620)]