21245695

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{1213}}^1$

素因数の和:1362

約数の個数: 16

約数和(自身を含む): 26572032

約数和(自身を除く): 5326337

約数列:

[1, 5, 31, 113, 155, 565, 1213, 3503, 6065, 17515, 37603, 137069, 188015, 685345, 4249139, 21245695]

約数ペア:

[(1, 21245695), (5, 4249139), (31, 685345), (113, 188015), (155, 137069), (565, 37603), (1213, 17515), (3503, 6065)]