18321974

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{3947}}^1$

素因数の和:4171

約数の個数: 16

約数和(自身を含む): 30131136

約数和(自身を除く): 11809162

約数列:

[1, 2, 11, 22, 211, 422, 2321, 3947, 4642, 7894, 43417, 86834, 832817, 1665634, 9160987, 18321974]

約数ペア:

[(1, 18321974), (2, 9160987), (11, 1665634), (22, 832817), (211, 86834), (422, 43417), (2321, 7894), (3947, 4642)]