18513385

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{409}}^1\times {\mathrm{823}}^1$

素因数の和:1248

約数の個数: 16

約数和(自身を含む): 24324480

約数和(自身を除く): 5811095

約数列:

[1, 5, 11, 55, 409, 823, 2045, 4115, 4499, 9053, 22495, 45265, 336607, 1683035, 3702677, 18513385]

約数ペア:

[(1, 18513385), (5, 3702677), (11, 1683035), (55, 336607), (409, 45265), (823, 22495), (2045, 9053), (4115, 4499)]