21325051

素因数分解:

${\mathrm{11}}^1\times {\mathrm{61}}^2\times {\mathrm{521}}^1$

素因数の和:654

約数の個数: 12

約数和(自身を含む): 23696712

約数和(自身を除く): 2371661

約数列:

[1, 11, 61, 521, 671, 3721, 5731, 31781, 40931, 349591, 1938641, 21325051]

約数ペア:

[(1, 21325051), (11, 1938641), (61, 349591), (521, 40931), (671, 31781), (3721, 5731)]