20457055

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{691}}^1$

素因数の和:918

約数の個数: 16

約数和(自身を含む): 25509888

約数和(自身を除く): 5052833

約数列:

[1, 5, 31, 155, 191, 691, 955, 3455, 5921, 21421, 29605, 107105, 131981, 659905, 4091411, 20457055]

約数ペア:

[(1, 20457055), (5, 4091411), (31, 659905), (155, 131981), (191, 107105), (691, 29605), (955, 21421), (3455, 5921)]