21378643

素因数分解:

${\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{13591}}^1$

素因数の和:13626

約数の個数: 12

約数和(自身を含む): 25308304

約数和(自身を除く): 3929661

約数列:

[1, 11, 13, 121, 143, 1573, 13591, 149501, 176683, 1644511, 1943513, 21378643]

約数ペア:

[(1, 21378643), (11, 1943513), (13, 1644511), (121, 176683), (143, 149501), (1573, 13591)]