21048720

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1$

素因数の和:118

約数の個数: 320

約数和(自身を含む): 87422976

約数和(自身を除く): 66374256

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 16, 17, 20, 21, 22, 24, 28, 30, 33, 34, 35, 40, 42, 44, 48, 51, 55, 56, 60, 66, 67, 68, 70, 77, 80, 84, 85, 88, 102, 105, 110, 112, 119, 120, 132, 134, 136, 140, 154, 165, 168, 170, 176, 187, 201, 204, 210, 220, 231, 238, 240, 255, 264, 268, 272, 280, 308, 330, 335, 336, 340, 357, 374, 385, 402, 408, 420, 440, 462, 469, 476, 510, 528, 536, 560, 561, 595, 616, 660, 670, 680, 714, 737, 748, 770, 804, 816, 840, 880, 924, 935, 938, 952, 1005, 1020, 1072, 1122, 1139, 1155, 1190, 1232, 1309, 1320, 1340, 1360, 1407, 1428, 1474, 1496, 1540, 1608, 1680, 1785, 1848, 1870, 1876, 1904, 2010, 2040, 2211, 2244, 2278, 2310, 2345, 2380, 2618, 2640, 2680, 2805, 2814, 2856, 2948, 2992, 3080, 3216, 3417, 3570, 3685, 3696, 3740, 3752, 3927, 4020, 4080, 4422, 4488, 4556, 4620, 4690, 4760, 5159, 5236, 5360, 5610, 5628, 5695, 5712, 5896, 6160, 6545, 6834, 7035, 7140, 7370, 7480, 7504, 7854, 7973, 8040, 8844, 8976, 9112, 9240, 9380, 9520, 10318, 10472, 11055, 11220, 11256, 11390, 11792, 12529, 13090, 13668, 14070, 14280, 14740, 14960, 15477, 15708, 15946, 16080, 17085, 17688, 18224, 18480, 18760, 19635, 20636, 20944, 22110, 22440, 22512, 22780, 23919, 25058, 25795, 26180, 27336, 28140, 28560, 29480, 30954, 31416, 31892, 34170, 35376, 37520, 37587, 39270, 39865, 41272, 44220, 44880, 45560, 47838, 50116, 51590, 52360, 54672, 56280, 58960, 61908, 62645, 62832, 63784, 68340, 75174, 77385, 78540, 79730, 82544, 87703, 88440, 91120, 95676, 100232, 103180, 104720, 112560, 119595, 123816, 125290, 127568, 136680, 150348, 154770, 157080, 159460, 175406, 176880, 187935, 191352, 200464, 206360, 239190, 247632, 250580, 263109, 273360, 300696, 309540, 314160, 318920, 350812, 375870, 382704, 412720, 438515, 478380, 501160, 526218, 601392, 619080, 637840, 701624, 751740, 877030, 956760, 1002320, 1052436, 1238160, 1315545, 1403248, 1503480, 1754060, 1913520, 2104872, 2631090, 3006960, 3508120, 4209744, 5262180, 7016240, 10524360, 21048720]

約数ペア:

[(1, 21048720), (2, 10524360), (3, 7016240), (4, 5262180), (5, 4209744), (6, 3508120), (7, 3006960), (8, 2631090), (10, 2104872), (11, 1913520), (12, 1754060), (14, 1503480), (15, 1403248), (16, 1315545), (17, 1238160), (20, 1052436), (21, 1002320), (22, 956760), (24, 877030), (28, 751740), (30, 701624), (33, 637840), (34, 619080), (35, 601392), (40, 526218), (42, 501160), (44, 478380), (48, 438515), (51, 412720), (55, 382704), (56, 375870), (60, 350812), (66, 318920), (67, 314160), (68, 309540), (70, 300696), (77, 273360), (80, 263109), (84, 250580), (85, 247632), (88, 239190), (102, 206360), (105, 200464), (110, 191352), (112, 187935), (119, 176880), (120, 175406), (132, 159460), (134, 157080), (136, 154770), (140, 150348), (154, 136680), (165, 127568), (168, 125290), (170, 123816), (176, 119595), (187, 112560), (201, 104720), (204, 103180), (210, 100232), (220, 95676), (231, 91120), (238, 88440), (240, 87703), (255, 82544), (264, 79730), (268, 78540), (272, 77385), (280, 75174), (308, 68340), (330, 63784), (335, 62832), (336, 62645), (340, 61908), (357, 58960), (374, 56280), (385, 54672), (402, 52360), (408, 51590), (420, 50116), (440, 47838), (462, 45560), (469, 44880), (476, 44220), (510, 41272), (528, 39865), (536, 39270), (560, 37587), (561, 37520), (595, 35376), (616, 34170), (660, 31892), (670, 31416), (680, 30954), (714, 29480), (737, 28560), (748, 28140), (770, 27336), (804, 26180), (816, 25795), (840, 25058), (880, 23919), (924, 22780), (935, 22512), (938, 22440), (952, 22110), (1005, 20944), (1020, 20636), (1072, 19635), (1122, 18760), (1139, 18480), (1155, 18224), (1190, 17688), (1232, 17085), (1309, 16080), (1320, 15946), (1340, 15708), (1360, 15477), (1407, 14960), (1428, 14740), (1474, 14280), (1496, 14070), (1540, 13668), (1608, 13090), (1680, 12529), (1785, 11792), (1848, 11390), (1870, 11256), (1876, 11220), (1904, 11055), (2010, 10472), (2040, 10318), (2211, 9520), (2244, 9380), (2278, 9240), (2310, 9112), (2345, 8976), (2380, 8844), (2618, 8040), (2640, 7973), (2680, 7854), (2805, 7504), (2814, 7480), (2856, 7370), (2948, 7140), (2992, 7035), (3080, 6834), (3216, 6545), (3417, 6160), (3570, 5896), (3685, 5712), (3696, 5695), (3740, 5628), (3752, 5610), (3927, 5360), (4020, 5236), (4080, 5159), (4422, 4760), (4488, 4690), (4556, 4620)]