19663281

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{2393}}^1$

素因数の和:2493

約数の個数: 24

約数和(自身を含む): 31370976

約数和(自身を除く): 11707695

約数列:

[1, 3, 9, 11, 33, 83, 99, 249, 747, 913, 2393, 2739, 7179, 8217, 21537, 26323, 78969, 198619, 236907, 595857, 1787571, 2184809, 6554427, 19663281]

約数ペア:

[(1, 19663281), (3, 6554427), (9, 2184809), (11, 1787571), (33, 595857), (83, 236907), (99, 198619), (249, 78969), (747, 26323), (913, 21537), (2393, 8217), (2739, 7179)]