21888910

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{75479}}^1$

素因数の和:75515

約数の個数: 16

約数和(自身を含む): 40759200

約数和(自身を除く): 18870290

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 75479, 150958, 377395, 754790, 2188891, 4377782, 10944455, 21888910]

約数ペア:

[(1, 21888910), (2, 10944455), (5, 4377782), (10, 2188891), (29, 754790), (58, 377395), (145, 150958), (290, 75479)]