20317875

素因数分解:

$3^1\times 5^3\times {\mathrm{54181}}^1$

素因数の和:54199

約数の個数: 16

約数和(自身を含む): 33809568

約数和(自身を除く): 13491693

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 54181, 162543, 270905, 812715, 1354525, 4063575, 6772625, 20317875]

約数ペア:

[(1, 20317875), (3, 6772625), (5, 4063575), (15, 1354525), (25, 812715), (75, 270905), (125, 162543), (375, 54181)]