15440217

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{311}}^1$

素因数の和:413

約数の個数: 32

約数和(自身を含む): 23761920

約数和(自身を除く): 8321703

約数列:

[1, 3, 13, 19, 39, 57, 67, 201, 247, 311, 741, 871, 933, 1273, 2613, 3819, 4043, 5909, 12129, 16549, 17727, 20837, 49647, 62511, 76817, 230451, 270881, 395903, 812643, 1187709, 5146739, 15440217]

約数ペア:

[(1, 15440217), (3, 5146739), (13, 1187709), (19, 812643), (39, 395903), (57, 270881), (67, 230451), (201, 76817), (247, 62511), (311, 49647), (741, 20837), (871, 17727), (933, 16549), (1273, 12129), (2613, 5909), (3819, 4043)]