20164893

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{163}}^1$

素因数の和:353

約数の個数: 32

約数和(自身を含む): 31865856

約数和(自身を除く): 11700963

約数列:

[1, 3, 7, 21, 43, 129, 137, 163, 301, 411, 489, 903, 959, 1141, 2877, 3423, 5891, 7009, 17673, 21027, 22331, 41237, 49063, 66993, 123711, 147189, 156317, 468951, 960233, 2880699, 6721631, 20164893]

約数ペア:

[(1, 20164893), (3, 6721631), (7, 2880699), (21, 960233), (43, 468951), (129, 156317), (137, 147189), (163, 123711), (301, 66993), (411, 49063), (489, 41237), (903, 22331), (959, 21027), (1141, 17673), (2877, 7009), (3423, 5891)]