18798238

素因数分解:

$2^1\times {\mathrm{131}}^1\times {\mathrm{157}}^1\times {\mathrm{457}}^1$

素因数の和:747

約数の個数: 16

約数和(自身を含む): 28656144

約数和(自身を除く): 9857906

約数列:

[1, 2, 131, 157, 262, 314, 457, 914, 20567, 41134, 59867, 71749, 119734, 143498, 9399119, 18798238]

約数ペア:

[(1, 18798238), (2, 9399119), (131, 143498), (157, 119734), (262, 71749), (314, 59867), (457, 41134), (914, 20567)]