20429978

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{18539}}^1$

素因数の和:18589

約数の個数: 16

約数和(自身を含む): 33372000

約数和(自身を除く): 12942022

約数列:

[1, 2, 19, 29, 38, 58, 551, 1102, 18539, 37078, 352241, 537631, 704482, 1075262, 10214989, 20429978]

約数ペア:

[(1, 20429978), (2, 10214989), (19, 1075262), (29, 704482), (38, 537631), (58, 352241), (551, 37078), (1102, 18539)]