20018715

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43051}}^1$

素因数の和:43090

約数の個数: 16

約数和(自身を含む): 33063936

約数和(自身を除く): 13045221

約数列:

[1, 3, 5, 15, 31, 93, 155, 465, 43051, 129153, 215255, 645765, 1334581, 4003743, 6672905, 20018715]

約数ペア:

[(1, 20018715), (3, 6672905), (5, 4003743), (15, 1334581), (31, 645765), (93, 215255), (155, 129153), (465, 43051)]