13205913

素因数分解:

$3^1\times 7^1\times {\mathrm{557}}^1\times {\mathrm{1129}}^1$

素因数の和:1696

約数の個数: 16

約数和(自身を含む): 20177280

約数和(自身を除く): 6971367

約数列:

[1, 3, 7, 21, 557, 1129, 1671, 3387, 3899, 7903, 11697, 23709, 628853, 1886559, 4401971, 13205913]

約数ペア:

[(1, 13205913), (3, 4401971), (7, 1886559), (21, 628853), (557, 23709), (1129, 11697), (1671, 7903), (3387, 3899)]