21276064

素因数分解:

$2^5\times {\mathrm{163}}^1\times {\mathrm{4079}}^1$

素因数の和:4252

約数の個数: 24

約数和(自身を含む): 42154560

約数和(自身を除く): 20878496

約数列:

[1, 2, 4, 8, 16, 32, 163, 326, 652, 1304, 2608, 4079, 5216, 8158, 16316, 32632, 65264, 130528, 664877, 1329754, 2659508, 5319016, 10638032, 21276064]

約数ペア:

[(1, 21276064), (2, 10638032), (4, 5319016), (8, 2659508), (16, 1329754), (32, 664877), (163, 130528), (326, 65264), (652, 32632), (1304, 16316), (2608, 8158), (4079, 5216)]