20966375

素因数分解:

$5^3\times {\mathrm{41}}^1\times {\mathrm{4091}}^1$

素因数の和:4147

約数の個数: 16

約数和(自身を含む): 26810784

約数和(自身を除く): 5844409

約数列:

[1, 5, 25, 41, 125, 205, 1025, 4091, 5125, 20455, 102275, 167731, 511375, 838655, 4193275, 20966375]

約数ペア:

[(1, 20966375), (5, 4193275), (25, 838655), (41, 511375), (125, 167731), (205, 102275), (1025, 20455), (4091, 5125)]