18996405

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{17837}}^1$

素因数の和:17916

約数の個数: 16

約数和(自身を含む): 30824064

約数和(自身を除く): 11827659

約数列:

[1, 3, 5, 15, 71, 213, 355, 1065, 17837, 53511, 89185, 267555, 1266427, 3799281, 6332135, 18996405]

約数ペア:

[(1, 18996405), (3, 6332135), (5, 3799281), (15, 1266427), (71, 267555), (213, 89185), (355, 53511), (1065, 17837)]