20724431

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{4297}}^1$

素因数の和:4370

約数の個数: 16

約数和(自身を含む): 25994304

約数和(自身を除く): 5269873

約数列:

[1, 7, 13, 53, 91, 371, 689, 4297, 4823, 30079, 55861, 227741, 391027, 1594187, 2960633, 20724431]

約数ペア:

[(1, 20724431), (7, 2960633), (13, 1594187), (53, 391027), (91, 227741), (371, 55861), (689, 30079), (4297, 4823)]