21684025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{2719}}^1$

素因数の和:2769

約数の個数: 24

約数和(自身を含む): 30355200

約数和(自身を除く): 8671175

約数列:

[1, 5, 11, 25, 29, 55, 145, 275, 319, 725, 1595, 2719, 7975, 13595, 29909, 67975, 78851, 149545, 394255, 747725, 867361, 1971275, 4336805, 21684025]

約数ペア:

[(1, 21684025), (5, 4336805), (11, 1971275), (25, 867361), (29, 747725), (55, 394255), (145, 149545), (275, 78851), (319, 67975), (725, 29909), (1595, 13595), (2719, 7975)]