21706975

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{757}}^1$

素因数の和:835

約数の個数: 24

約数和(自身を含む): 28573568

約数和(自身を除く): 6866593

約数列:

[1, 5, 25, 31, 37, 155, 185, 757, 775, 925, 1147, 3785, 5735, 18925, 23467, 28009, 28675, 117335, 140045, 586675, 700225, 868279, 4341395, 21706975]

約数ペア:

[(1, 21706975), (5, 4341395), (25, 868279), (31, 700225), (37, 586675), (155, 140045), (185, 117335), (757, 28675), (775, 28009), (925, 23467), (1147, 18925), (3785, 5735)]