18181405

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{11399}}^1$

素因数の和:11444

約数の個数: 16

約数和(自身を含む): 24624000

約数和(自身を除く): 6442595

約数列:

[1, 5, 11, 29, 55, 145, 319, 1595, 11399, 56995, 125389, 330571, 626945, 1652855, 3636281, 18181405]

約数ペア:

[(1, 18181405), (5, 3636281), (11, 1652855), (29, 626945), (55, 330571), (145, 125389), (319, 56995), (1595, 11399)]