20017875

素因数分解:

$3^1\times 5^3\times {\mathrm{53381}}^1$

素因数の和:53399

約数の個数: 16

約数和(自身を含む): 33310368

約数和(自身を除く): 13292493

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 53381, 160143, 266905, 800715, 1334525, 4003575, 6672625, 20017875]

約数ペア:

[(1, 20017875), (3, 6672625), (5, 4003575), (15, 1334525), (25, 800715), (75, 266905), (125, 160143), (375, 53381)]