21386296

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{72251}}^1$

素因数の和:72294

約数の個数: 16

約数和(自身を含む): 41183640

約数和(自身を除く): 19797344

約数列:

[1, 2, 4, 8, 37, 74, 148, 296, 72251, 144502, 289004, 578008, 2673287, 5346574, 10693148, 21386296]

約数ペア:

[(1, 21386296), (2, 10693148), (4, 5346574), (8, 2673287), (37, 578008), (74, 289004), (148, 144502), (296, 72251)]