18421893

素因数分解:

$3^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{1129}}^1$

素因数の和:1186

約数の個数: 36

約数和(自身を含む): 31818540

約数和(自身を除く): 13396647

約数列:

[1, 3, 7, 9, 21, 37, 49, 63, 111, 147, 259, 333, 441, 777, 1129, 1813, 2331, 3387, 5439, 7903, 10161, 16317, 23709, 41773, 55321, 71127, 125319, 165963, 292411, 375957, 497889, 877233, 2046877, 2631699, 6140631, 18421893]

約数ペア:

[(1, 18421893), (3, 6140631), (7, 2631699), (9, 2046877), (21, 877233), (37, 497889), (49, 375957), (63, 292411), (111, 165963), (147, 125319), (259, 71127), (333, 55321), (441, 41773), (777, 23709), (1129, 16317), (1813, 10161), (2331, 7903), (3387, 5439)]