81390726

素因数分解:

$2^1\times 3^2\times {\mathrm{4521707}}^1$

素因数の和:4521715

約数の個数: 12

約数和(自身を含む): 176346612

約数和(自身を除く): 94955886

約数列:

[1, 2, 3, 6, 9, 18, 4521707, 9043414, 13565121, 27130242, 40695363, 81390726]

約数ペア:

[(1, 81390726), (2, 40695363), (3, 27130242), (6, 13565121), (9, 9043414), (18, 4521707)]