18988918

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{19739}}^1$

素因数の和:19791

約数の個数: 16

約数和(自身を含む): 31505040

約数和(自身を除く): 12516122

約数列:

[1, 2, 13, 26, 37, 74, 481, 962, 19739, 39478, 256607, 513214, 730343, 1460686, 9494459, 18988918]

約数ペア:

[(1, 18988918), (2, 9494459), (13, 1460686), (26, 730343), (37, 513214), (74, 256607), (481, 39478), (962, 19739)]