20478617

素因数分解:

${\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:272

約数の個数: 16

約数和(自身を含む): 21738240

約数和(自身を除く): 1259623

約数列:

[1, 53, 67, 73, 79, 3551, 3869, 4187, 4891, 5293, 5767, 259223, 280529, 305651, 386389, 20478617]

約数ペア:

[(1, 20478617), (53, 386389), (67, 305651), (73, 280529), (79, 259223), (3551, 5767), (3869, 5293), (4187, 4891)]