20138643

素因数分解:

$3^2\times 7^1\times {\mathrm{373}}^1\times {\mathrm{857}}^1$

素因数の和:1243

約数の個数: 24

約数和(自身を含む): 33372768

約数和(自身を除く): 13234125

約数列:

[1, 3, 7, 9, 21, 63, 373, 857, 1119, 2571, 2611, 3357, 5999, 7713, 7833, 17997, 23499, 53991, 319661, 958983, 2237627, 2876949, 6712881, 20138643]

約数ペア:

[(1, 20138643), (3, 6712881), (7, 2876949), (9, 2237627), (21, 958983), (63, 319661), (373, 53991), (857, 23499), (1119, 17997), (2571, 7833), (2611, 7713), (3357, 5999)]