81910353

素因数分解:

$3^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{17491}}^1$

素因数の和:17724

約数の個数: 16

約数和(自身を含む): 125382656

約数和(自身を除く): 43472303

約数列:

[1, 3, 7, 21, 223, 669, 1561, 4683, 17491, 52473, 122437, 367311, 3900493, 11701479, 27303451, 81910353]

約数ペア:

[(1, 81910353), (3, 27303451), (7, 11701479), (21, 3900493), (223, 367311), (669, 122437), (1561, 52473), (4683, 17491)]