81639405

素因数分解:

$3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{44249}}^1$

素因数の和:44301

約数の個数: 24

約数和(自身を含む): 144963000

約数和(自身を除く): 63323595

約数列:

[1, 3, 5, 9, 15, 41, 45, 123, 205, 369, 615, 1845, 44249, 132747, 221245, 398241, 663735, 1814209, 1991205, 5442627, 9071045, 16327881, 27213135, 81639405]

約数ペア:

[(1, 81639405), (3, 27213135), (5, 16327881), (9, 9071045), (15, 5442627), (41, 1991205), (45, 1814209), (123, 663735), (205, 398241), (369, 221245), (615, 132747), (1845, 44249)]