21742617

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{7057}}^1$

素因数の和:7152

約数の個数: 16

約数和(自身を含む): 31619840

約数和(自身を除く): 9877223

約数列:

[1, 3, 13, 39, 79, 237, 1027, 3081, 7057, 21171, 91741, 275223, 557503, 1672509, 7247539, 21742617]

約数ペア:

[(1, 21742617), (3, 7247539), (13, 1672509), (39, 557503), (79, 275223), (237, 91741), (1027, 21171), (3081, 7057)]