81621495

素因数分解:

$3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{13049}}^1$

素因数の和:13199

約数の個数: 24

約数和(自身を含む): 142506000

約数和(自身を除く): 60884505

約数列:

[1, 3, 5, 9, 15, 45, 139, 417, 695, 1251, 2085, 6255, 13049, 39147, 65245, 117441, 195735, 587205, 1813811, 5441433, 9069055, 16324299, 27207165, 81621495]

約数ペア:

[(1, 81621495), (3, 27207165), (5, 16324299), (9, 9069055), (15, 5441433), (45, 1813811), (139, 587205), (417, 195735), (695, 117441), (1251, 65245), (2085, 39147), (6255, 13049)]