20559159

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{251}}^1\times {\mathrm{479}}^1$

素因数の和:755

約数の個数: 24

約数和(自身を含む): 31449600

約数和(自身を除く): 10890441

約数列:

[1, 3, 9, 19, 57, 171, 251, 479, 753, 1437, 2259, 4311, 4769, 9101, 14307, 27303, 42921, 81909, 120229, 360687, 1082061, 2284351, 6853053, 20559159]

約数ペア:

[(1, 20559159), (3, 6853053), (9, 2284351), (19, 1082061), (57, 360687), (171, 120229), (251, 81909), (479, 42921), (753, 27303), (1437, 14307), (2259, 9101), (4311, 4769)]