81645916

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{1855589}}^1$

素因数の和:1855604

約数の個数: 12

約数和(自身を含む): 155869560

約数和(自身を除く): 74223644

約数列:

[1, 2, 4, 11, 22, 44, 1855589, 3711178, 7422356, 20411479, 40822958, 81645916]

約数ペア:

[(1, 81645916), (2, 40822958), (4, 20411479), (11, 7422356), (22, 3711178), (44, 1855589)]