20401238

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71333}}^1$

素因数の和:71359

約数の個数: 16

約数和(自身を含む): 35952336

約数和(自身を除く): 15551098

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 71333, 142666, 784663, 927329, 1569326, 1854658, 10200619, 20401238]

約数ペア:

[(1, 20401238), (2, 10200619), (11, 1854658), (13, 1569326), (22, 927329), (26, 784663), (143, 142666), (286, 71333)]