18949777

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{431}}^1\times {\mathrm{571}}^1$

素因数の和:1020

約数の個数: 16

約数和(自身を含む): 23721984

約数和(自身を除く): 4772207

約数列:

[1, 7, 11, 77, 431, 571, 3017, 3997, 4741, 6281, 33187, 43967, 246101, 1722707, 2707111, 18949777]

約数ペア:

[(1, 18949777), (7, 2707111), (11, 1722707), (77, 246101), (431, 43967), (571, 33187), (3017, 6281), (3997, 4741)]