20409315

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43891}}^1$

素因数の和:43930

約数の個数: 16

約数和(自身を含む): 33709056

約数和(自身を除く): 13299741

約数列:

[1, 3, 5, 15, 31, 93, 155, 465, 43891, 131673, 219455, 658365, 1360621, 4081863, 6803105, 20409315]

約数ペア:

[(1, 20409315), (3, 6803105), (5, 4081863), (15, 1360621), (31, 658365), (93, 219455), (155, 131673), (465, 43891)]