20129753

素因数分解:

$7^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{409}}^1$

素因数の和:584

約数の個数: 16

約数和(自身を含む): 23616000

約数和(自身を除く): 3486247

約数列:

[1, 7, 79, 89, 409, 553, 623, 2863, 7031, 32311, 36401, 49217, 226177, 254807, 2875679, 20129753]

約数ペア:

[(1, 20129753), (7, 2875679), (79, 254807), (89, 226177), (409, 49217), (553, 36401), (623, 32311), (2863, 7031)]