20449723

素因数分解:

$7^1\times {\mathrm{103}}^1\times {\mathrm{113}}^1\times {\mathrm{251}}^1$

素因数の和:474

約数の個数: 16

約数和(自身を含む): 23901696

約数和(自身を除く): 3451973

約数列:

[1, 7, 103, 113, 251, 721, 791, 1757, 11639, 25853, 28363, 81473, 180971, 198541, 2921389, 20449723]

約数ペア:

[(1, 20449723), (7, 2921389), (103, 198541), (113, 180971), (251, 81473), (721, 28363), (791, 25853), (1757, 11639)]