21261804

素因数分解:

$2^2\times 3^1\times {\mathrm{557}}^1\times {\mathrm{3181}}^1$

素因数の和:3745

約数の個数: 24

約数和(自身を含む): 49715568

約数和(自身を除く): 28453764

約数列:

[1, 2, 3, 4, 6, 12, 557, 1114, 1671, 2228, 3181, 3342, 6362, 6684, 9543, 12724, 19086, 38172, 1771817, 3543634, 5315451, 7087268, 10630902, 21261804]

約数ペア:

[(1, 21261804), (2, 10630902), (3, 7087268), (4, 5315451), (6, 3543634), (12, 1771817), (557, 38172), (1114, 19086), (1671, 12724), (2228, 9543), (3181, 6684), (3342, 6362)]