21731766

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1$

素因数の和:269

約数の個数: 64

約数和(自身を含む): 51701760

約数和(自身を除く): 29969994

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 47, 94, 101, 109, 141, 202, 218, 282, 303, 327, 329, 606, 654, 658, 707, 763, 987, 1414, 1526, 1974, 2121, 2289, 4242, 4578, 4747, 5123, 9494, 10246, 11009, 14241, 15369, 22018, 28482, 30738, 33027, 33229, 35861, 66054, 66458, 71722, 77063, 99687, 107583, 154126, 199374, 215166, 231189, 462378, 517423, 1034846, 1552269, 3104538, 3621961, 7243922, 10865883, 21731766]

約数ペア:

[(1, 21731766), (2, 10865883), (3, 7243922), (6, 3621961), (7, 3104538), (14, 1552269), (21, 1034846), (42, 517423), (47, 462378), (94, 231189), (101, 215166), (109, 199374), (141, 154126), (202, 107583), (218, 99687), (282, 77063), (303, 71722), (327, 66458), (329, 66054), (606, 35861), (654, 33229), (658, 33027), (707, 30738), (763, 28482), (987, 22018), (1414, 15369), (1526, 14241), (1974, 11009), (2121, 10246), (2289, 9494), (4242, 5123), (4578, 4747)]