17980245

素因数分解:

$3^3\times 5^1\times {\mathrm{133187}}^1$

素因数の和:133201

約数の個数: 16

約数和(自身を含む): 31965120

約数和(自身を除く): 13984875

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 133187, 399561, 665935, 1198683, 1997805, 3596049, 5993415, 17980245]

約数ペア:

[(1, 17980245), (3, 5993415), (5, 3596049), (9, 1997805), (15, 1198683), (27, 665935), (45, 399561), (135, 133187)]