21194655

素因数分解:

$3^1\times 5^1\times {\mathrm{277}}^1\times {\mathrm{5101}}^1$

素因数の和:5386

約数の個数: 16

約数和(自身を含む): 34040544

約数和(自身を除く): 12845889

約数列:

[1, 3, 5, 15, 277, 831, 1385, 4155, 5101, 15303, 25505, 76515, 1412977, 4238931, 7064885, 21194655]

約数ペア:

[(1, 21194655), (3, 7064885), (5, 4238931), (15, 1412977), (277, 76515), (831, 25505), (1385, 15303), (4155, 5101)]