21906621

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{2801}}^1$

素因数の和:2897

約数の個数: 24

約数和(自身を含む): 34968960

約数和(自身を除く): 13062339

約数列:

[1, 3, 9, 11, 33, 79, 99, 237, 711, 869, 2607, 2801, 7821, 8403, 25209, 30811, 92433, 221279, 277299, 663837, 1991511, 2434069, 7302207, 21906621]

約数ペア:

[(1, 21906621), (3, 7302207), (9, 2434069), (11, 1991511), (33, 663837), (79, 277299), (99, 221279), (237, 92433), (711, 30811), (869, 25209), (2607, 8403), (2801, 7821)]