20490742

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1\times {\mathrm{1277}}^1$

素因数の和:1463

約数の個数: 16

約数和(自身を含む): 31469472

約数和(自身を除く): 10978730

約数列:

[1, 2, 71, 113, 142, 226, 1277, 2554, 8023, 16046, 90667, 144301, 181334, 288602, 10245371, 20490742]

約数ペア:

[(1, 20490742), (2, 10245371), (71, 288602), (113, 181334), (142, 144301), (226, 90667), (1277, 16046), (2554, 8023)]