81621405

素因数分解:

$3^3\times 5^1\times {\mathrm{604603}}^1$

素因数の和:604617

約数の個数: 16

約数和(自身を含む): 145104960

約数和(自身を除く): 63483555

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 604603, 1813809, 3023015, 5441427, 9069045, 16324281, 27207135, 81621405]

約数ペア:

[(1, 81621405), (3, 27207135), (5, 16324281), (9, 9069045), (15, 5441427), (27, 3023015), (45, 1813809), (135, 604603)]