21013421

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{6389}}^1$

素因数の和:6436

約数の個数: 16

約数和(自身を含む): 25764480

約数和(自身を除く): 4751059

約数列:

[1, 11, 13, 23, 143, 253, 299, 3289, 6389, 70279, 83057, 146947, 913627, 1616417, 1910311, 21013421]

約数ペア:

[(1, 21013421), (11, 1910311), (13, 1616417), (23, 913627), (143, 146947), (253, 83057), (299, 70279), (3289, 6389)]