21501665

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{3169}}^1$

素因数の和:3256

約数の個数: 16

約数和(自身を含む): 27388800

約数和(自身を除く): 5887135

約数列:

[1, 5, 23, 59, 115, 295, 1357, 3169, 6785, 15845, 72887, 186971, 364435, 934855, 4300333, 21501665]

約数ペア:

[(1, 21501665), (5, 4300333), (23, 934855), (59, 364435), (115, 186971), (295, 72887), (1357, 15845), (3169, 6785)]