21112080

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{727}}^1$

素因数の和:765

約数の個数: 120

約数和(自身を含む): 72037056

約数和(自身を除く): 50924976

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 121, 132, 165, 176, 220, 240, 242, 264, 330, 363, 440, 484, 528, 605, 660, 726, 727, 880, 968, 1210, 1320, 1452, 1454, 1815, 1936, 2181, 2420, 2640, 2904, 2908, 3630, 3635, 4362, 4840, 5808, 5816, 7260, 7270, 7997, 8724, 9680, 10905, 11632, 14520, 14540, 15994, 17448, 21810, 23991, 29040, 29080, 31988, 34896, 39985, 43620, 47982, 58160, 63976, 79970, 87240, 87967, 95964, 119955, 127952, 159940, 174480, 175934, 191928, 239910, 263901, 319880, 351868, 383856, 439835, 479820, 527802, 639760, 703736, 879670, 959640, 1055604, 1319505, 1407472, 1759340, 1919280, 2111208, 2639010, 3518680, 4222416, 5278020, 7037360, 10556040, 21112080]

約数ペア:

[(1, 21112080), (2, 10556040), (3, 7037360), (4, 5278020), (5, 4222416), (6, 3518680), (8, 2639010), (10, 2111208), (11, 1919280), (12, 1759340), (15, 1407472), (16, 1319505), (20, 1055604), (22, 959640), (24, 879670), (30, 703736), (33, 639760), (40, 527802), (44, 479820), (48, 439835), (55, 383856), (60, 351868), (66, 319880), (80, 263901), (88, 239910), (110, 191928), (120, 175934), (121, 174480), (132, 159940), (165, 127952), (176, 119955), (220, 95964), (240, 87967), (242, 87240), (264, 79970), (330, 63976), (363, 58160), (440, 47982), (484, 43620), (528, 39985), (605, 34896), (660, 31988), (726, 29080), (727, 29040), (880, 23991), (968, 21810), (1210, 17448), (1320, 15994), (1452, 14540), (1454, 14520), (1815, 11632), (1936, 10905), (2181, 9680), (2420, 8724), (2640, 7997), (2904, 7270), (2908, 7260), (3630, 5816), (3635, 5808), (4362, 4840)]