21050872

素因数分解:

$2^3\times {\mathrm{137}}^1\times {\mathrm{19207}}^1$

素因数の和:19350

約数の個数: 16

約数和(自身を含む): 39760560

約数和(自身を除く): 18709688

約数列:

[1, 2, 4, 8, 137, 274, 548, 1096, 19207, 38414, 76828, 153656, 2631359, 5262718, 10525436, 21050872]

約数ペア:

[(1, 21050872), (2, 10525436), (4, 5262718), (8, 2631359), (137, 153656), (274, 76828), (548, 38414), (1096, 19207)]