18708669

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{7243}}^1$

素因数の和:7297

約数の個数: 24

約数和(自身を含む): 31641792

約数和(自身を除く): 12933123

約数列:

[1, 3, 7, 9, 21, 41, 63, 123, 287, 369, 861, 2583, 7243, 21729, 50701, 65187, 152103, 296963, 456309, 890889, 2078741, 2672667, 6236223, 18708669]

約数ペア:

[(1, 18708669), (3, 6236223), (7, 2672667), (9, 2078741), (21, 890889), (41, 456309), (63, 296963), (123, 152103), (287, 65187), (369, 50701), (861, 21729), (2583, 7243)]