21591240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{1487}}^1$

素因数の和:1523

約数の個数: 96

約数和(自身を含む): 71245440

約数和(自身を除く): 49654200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 121, 132, 165, 220, 242, 264, 330, 363, 440, 484, 605, 660, 726, 968, 1210, 1320, 1452, 1487, 1815, 2420, 2904, 2974, 3630, 4461, 4840, 5948, 7260, 7435, 8922, 11896, 14520, 14870, 16357, 17844, 22305, 29740, 32714, 35688, 44610, 49071, 59480, 65428, 81785, 89220, 98142, 130856, 163570, 178440, 179927, 196284, 245355, 327140, 359854, 392568, 490710, 539781, 654280, 719708, 899635, 981420, 1079562, 1439416, 1799270, 1962840, 2159124, 2698905, 3598540, 4318248, 5397810, 7197080, 10795620, 21591240]

約数ペア:

[(1, 21591240), (2, 10795620), (3, 7197080), (4, 5397810), (5, 4318248), (6, 3598540), (8, 2698905), (10, 2159124), (11, 1962840), (12, 1799270), (15, 1439416), (20, 1079562), (22, 981420), (24, 899635), (30, 719708), (33, 654280), (40, 539781), (44, 490710), (55, 392568), (60, 359854), (66, 327140), (88, 245355), (110, 196284), (120, 179927), (121, 178440), (132, 163570), (165, 130856), (220, 98142), (242, 89220), (264, 81785), (330, 65428), (363, 59480), (440, 49071), (484, 44610), (605, 35688), (660, 32714), (726, 29740), (968, 22305), (1210, 17844), (1320, 16357), (1452, 14870), (1487, 14520), (1815, 11896), (2420, 8922), (2904, 7435), (2974, 7260), (3630, 5948), (4461, 4840)]