20857575

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{8971}}^1$

素因数の和:9015

約数の個数: 24

約数和(自身を含む): 35600896

約数和(自身を除く): 14743321

約数列:

[1, 3, 5, 15, 25, 31, 75, 93, 155, 465, 775, 2325, 8971, 26913, 44855, 134565, 224275, 278101, 672825, 834303, 1390505, 4171515, 6952525, 20857575]

約数ペア:

[(1, 20857575), (3, 6952525), (5, 4171515), (15, 1390505), (25, 834303), (31, 672825), (75, 278101), (93, 224275), (155, 134565), (465, 44855), (775, 26913), (2325, 8971)]