20449457

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{577}}^1$

素因数の和:728

約数の個数: 16

約数和(自身を含む): 24081792

約数和(自身を除く): 3632335

約数列:

[1, 7, 61, 83, 427, 577, 581, 4039, 5063, 35197, 35441, 47891, 246379, 335237, 2921351, 20449457]

約数ペア:

[(1, 20449457), (7, 2921351), (61, 335237), (83, 246379), (427, 47891), (577, 35441), (581, 35197), (4039, 5063)]