21161638

素因数分解:

$2^1\times {\mathrm{139}}^1\times {\mathrm{163}}^1\times {\mathrm{467}}^1$

素因数の和:771

約数の個数: 16

約数和(自身を含む): 32235840

約数和(自身を除く): 11074202

約数列:

[1, 2, 139, 163, 278, 326, 467, 934, 22657, 45314, 64913, 76121, 129826, 152242, 10580819, 21161638]

約数ペア:

[(1, 21161638), (2, 10580819), (139, 152242), (163, 129826), (278, 76121), (326, 64913), (467, 45314), (934, 22657)]