20565513339

素因数分解:

$3^1\times 7^1\times {\mathrm{557}}^1\times {\mathrm{1758187}}^1$

素因数の和:1758754

約数の個数: 16

約数和(自身を含む): 31394204928

約数和(自身を除く): 10828691589

約数列:

[1, 3, 7, 21, 557, 1671, 3899, 11697, 1758187, 5274561, 12307309, 36921927, 979310159, 2937930477, 6855171113, 20565513339]

約数ペア:

[(1, 20565513339), (3, 6855171113), (7, 2937930477), (21, 979310159), (557, 36921927), (1671, 12307309), (3899, 5274561), (11697, 1758187)]