21612239

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{1039}}^1$

素因数の和:1142

約数の個数: 16

約数和(自身を含む): 24760320

約数和(自身を除く): 3148081

約数列:

[1, 11, 31, 61, 341, 671, 1039, 1891, 11429, 20801, 32209, 63379, 354299, 697169, 1964749, 21612239]

約数ペア:

[(1, 21612239), (11, 1964749), (31, 697169), (61, 354299), (341, 63379), (671, 32209), (1039, 20801), (1891, 11429)]