21621652

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{415801}}^1$

素因数の和:415818

約数の個数: 12

約数和(自身を含む): 40748596

約数和(自身を除く): 19126944

約数列:

[1, 2, 4, 13, 26, 52, 415801, 831602, 1663204, 5405413, 10810826, 21621652]

約数ペア:

[(1, 21621652), (2, 10810826), (4, 5405413), (13, 1663204), (26, 831602), (52, 415801)]