20511837

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{503}}^1$

素因数の和:729

約数の個数: 24

約数和(自身を含む): 31135104

約数和(自身を除く): 10623267

約数列:

[1, 3, 9, 23, 69, 197, 207, 503, 591, 1509, 1773, 4527, 4531, 11569, 13593, 34707, 40779, 99091, 104121, 297273, 891819, 2279093, 6837279, 20511837]

約数ペア:

[(1, 20511837), (3, 6837279), (9, 2279093), (23, 891819), (69, 297273), (197, 104121), (207, 99091), (503, 40779), (591, 34707), (1509, 13593), (1773, 11569), (4527, 4531)]