21995820

素因数分解:

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

素因数の和:82

約数の個数: 288

約数和(自身を含む): 89187840

約数和(自身を除く): 67192020

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 23, 27, 28, 30, 33, 35, 36, 42, 44, 45, 46, 54, 55, 60, 63, 66, 69, 70, 77, 84, 90, 92, 99, 105, 108, 110, 115, 126, 132, 135, 138, 140, 154, 161, 165, 180, 189, 198, 207, 210, 220, 230, 231, 252, 253, 270, 276, 297, 308, 315, 322, 330, 345, 378, 385, 396, 414, 420, 460, 462, 483, 495, 506, 529, 540, 594, 621, 630, 644, 660, 690, 693, 756, 759, 770, 805, 828, 924, 945, 966, 990, 1012, 1035, 1058, 1155, 1188, 1242, 1260, 1265, 1380, 1386, 1449, 1485, 1518, 1540, 1587, 1610, 1771, 1890, 1932, 1980, 2070, 2079, 2116, 2277, 2310, 2415, 2484, 2530, 2645, 2772, 2898, 2970, 3036, 3105, 3174, 3220, 3465, 3542, 3703, 3780, 3795, 4140, 4158, 4347, 4554, 4620, 4761, 4830, 5060, 5290, 5313, 5796, 5819, 5940, 6210, 6348, 6831, 6930, 7084, 7245, 7406, 7590, 7935, 8316, 8694, 8855, 9108, 9522, 9660, 10395, 10580, 10626, 11109, 11385, 11638, 12420, 13662, 13860, 14283, 14490, 14812, 15180, 15870, 15939, 17388, 17457, 17710, 18515, 19044, 20790, 21252, 21735, 22218, 22770, 23276, 23805, 26565, 27324, 28566, 28980, 29095, 31740, 31878, 33327, 34155, 34914, 35420, 37030, 40733, 41580, 43470, 44436, 45540, 47610, 47817, 52371, 53130, 55545, 57132, 58190, 63756, 66654, 68310, 69828, 71415, 74060, 79695, 81466, 86940, 87285, 95220, 95634, 99981, 104742, 106260, 111090, 116380, 122199, 133308, 136620, 142830, 157113, 159390, 162932, 166635, 174570, 191268, 199962, 203665, 209484, 222180, 239085, 244398, 261855, 285660, 314226, 318780, 333270, 349140, 366597, 399924, 407330, 478170, 488796, 499905, 523710, 610995, 628452, 666540, 733194, 785565, 814660, 956340, 999810, 1047420, 1099791, 1221990, 1466388, 1571130, 1832985, 1999620, 2199582, 2443980, 3142260, 3665970, 4399164, 5498955, 7331940, 10997910, 21995820]

約数ペア:

[(1, 21995820), (2, 10997910), (3, 7331940), (4, 5498955), (5, 4399164), (6, 3665970), (7, 3142260), (9, 2443980), (10, 2199582), (11, 1999620), (12, 1832985), (14, 1571130), (15, 1466388), (18, 1221990), (20, 1099791), (21, 1047420), (22, 999810), (23, 956340), (27, 814660), (28, 785565), (30, 733194), (33, 666540), (35, 628452), (36, 610995), (42, 523710), (44, 499905), (45, 488796), (46, 478170), (54, 407330), (55, 399924), (60, 366597), (63, 349140), (66, 333270), (69, 318780), (70, 314226), (77, 285660), (84, 261855), (90, 244398), (92, 239085), (99, 222180), (105, 209484), (108, 203665), (110, 199962), (115, 191268), (126, 174570), (132, 166635), (135, 162932), (138, 159390), (140, 157113), (154, 142830), (161, 136620), (165, 133308), (180, 122199), (189, 116380), (198, 111090), (207, 106260), (210, 104742), (220, 99981), (230, 95634), (231, 95220), (252, 87285), (253, 86940), (270, 81466), (276, 79695), (297, 74060), (308, 71415), (315, 69828), (322, 68310), (330, 66654), (345, 63756), (378, 58190), (385, 57132), (396, 55545), (414, 53130), (420, 52371), (460, 47817), (462, 47610), (483, 45540), (495, 44436), (506, 43470), (529, 41580), (540, 40733), (594, 37030), (621, 35420), (630, 34914), (644, 34155), (660, 33327), (690, 31878), (693, 31740), (756, 29095), (759, 28980), (770, 28566), (805, 27324), (828, 26565), (924, 23805), (945, 23276), (966, 22770), (990, 22218), (1012, 21735), (1035, 21252), (1058, 20790), (1155, 19044), (1188, 18515), (1242, 17710), (1260, 17457), (1265, 17388), (1380, 15939), (1386, 15870), (1449, 15180), (1485, 14812), (1518, 14490), (1540, 14283), (1587, 13860), (1610, 13662), (1771, 12420), (1890, 11638), (1932, 11385), (1980, 11109), (2070, 10626), (2079, 10580), (2116, 10395), (2277, 9660), (2310, 9522), (2415, 9108), (2484, 8855), (2530, 8694), (2645, 8316), (2772, 7935), (2898, 7590), (2970, 7406), (3036, 7245), (3105, 7084), (3174, 6930), (3220, 6831), (3465, 6348), (3542, 6210), (3703, 5940), (3780, 5819), (3795, 5796), (4140, 5313), (4158, 5290), (4347, 5060), (4554, 4830), (4620, 4761)]