21902885

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{167}}^1\times {\mathrm{1543}}^1$

素因数の和:1732

約数の個数: 16

約数和(自身を含む): 28014336

約数和(自身を除く): 6111451

約数列:

[1, 5, 17, 85, 167, 835, 1543, 2839, 7715, 14195, 26231, 131155, 257681, 1288405, 4380577, 21902885]

約数ペア:

[(1, 21902885), (5, 4380577), (17, 1288405), (85, 257681), (167, 131155), (835, 26231), (1543, 14195), (2839, 7715)]