20940143

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{1151}}^1$

素因数の和:1294

約数の個数: 16

約数和(自身を含む): 25214976

約数和(自身を除く): 4274833

約数列:

[1, 7, 23, 113, 161, 791, 1151, 2599, 8057, 18193, 26473, 130063, 185311, 910441, 2991449, 20940143]

約数ペア:

[(1, 20940143), (7, 2991449), (23, 910441), (113, 185311), (161, 130063), (791, 26473), (1151, 18193), (2599, 8057)]