21168590

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{20959}}^1$

素因数の和:21067

約数の個数: 16

約数和(自身を含む): 38482560

約数和(自身を除く): 17313970

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 20959, 41918, 104795, 209590, 2116859, 4233718, 10584295, 21168590]

約数ペア:

[(1, 21168590), (2, 10584295), (5, 4233718), (10, 2116859), (101, 209590), (202, 104795), (505, 41918), (1010, 20959)]