28821165

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61981}}^1$

素因数の和:62020

約数の個数: 16

約数和(自身を含む): 47602176

約数和(自身を除く): 18781011

約数列:

[1, 3, 5, 15, 31, 93, 155, 465, 61981, 185943, 309905, 929715, 1921411, 5764233, 9607055, 28821165]

約数ペア:

[(1, 28821165), (3, 9607055), (5, 5764233), (15, 1921411), (31, 929715), (93, 309905), (155, 185943), (465, 61981)]