20021571

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{1871}}^1$

素因数の和:1947

約数の個数: 24

約数和(自身を含む): 30663360

約数和(自身を除く): 10641789

約数列:

[1, 3, 9, 29, 41, 87, 123, 261, 369, 1189, 1871, 3567, 5613, 10701, 16839, 54259, 76711, 162777, 230133, 488331, 690399, 2224619, 6673857, 20021571]

約数ペア:

[(1, 20021571), (3, 6673857), (9, 2224619), (29, 690399), (41, 488331), (87, 230133), (123, 162777), (261, 76711), (369, 54259), (1189, 16839), (1871, 10701), (3567, 5613)]