21445831

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{1031}}^1$

素因数の和:1134

約数の個数: 16

約数和(自身を含む): 24569856

約数和(自身を除く): 3124025

約数列:

[1, 11, 31, 61, 341, 671, 1031, 1891, 11341, 20801, 31961, 62891, 351571, 691801, 1949621, 21445831]

約数ペア:

[(1, 21445831), (11, 1949621), (31, 691801), (61, 351571), (341, 62891), (671, 31961), (1031, 20801), (1891, 11341)]