20861708

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{17327}}^1$

素因数の和:17381

約数の個数: 24

約数和(自身を含む): 42696192

約数和(自身を除く): 21834484

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 602, 1204, 17327, 34654, 69308, 121289, 242578, 485156, 745061, 1490122, 2980244, 5215427, 10430854, 20861708]

約数ペア:

[(1, 20861708), (2, 10430854), (4, 5215427), (7, 2980244), (14, 1490122), (28, 745061), (43, 485156), (86, 242578), (172, 121289), (301, 69308), (602, 34654), (1204, 17327)]