21458879

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{1091}}^1$

素因数の和:1210

約数の個数: 16

約数和(自身を含む): 24766560

約数和(自身を除く): 3307681

約数列:

[1, 13, 17, 89, 221, 1091, 1157, 1513, 14183, 18547, 19669, 97099, 241111, 1262287, 1650683, 21458879]

約数ペア:

[(1, 21458879), (13, 1650683), (17, 1262287), (89, 241111), (221, 97099), (1091, 19669), (1157, 18547), (1513, 14183)]