21313375

素因数分解:

$5^3\times {\mathrm{167}}^1\times {\mathrm{1021}}^1$

素因数の和:1203

約数の個数: 16

約数和(自身を含む): 26784576

約数和(自身を除く): 5471201

約数列:

[1, 5, 25, 125, 167, 835, 1021, 4175, 5105, 20875, 25525, 127625, 170507, 852535, 4262675, 21313375]

約数ペア:

[(1, 21313375), (5, 4262675), (25, 852535), (125, 170507), (167, 127625), (835, 25525), (1021, 20875), (4175, 5105)]