21872977

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{1319}}^1$

素因数の和:1452

約数の個数: 16

約数和(自身を含む): 26357760

約数和(自身を除く): 4484783

約数列:

[1, 7, 23, 103, 161, 721, 1319, 2369, 9233, 16583, 30337, 135857, 212359, 950999, 3124711, 21872977]

約数ペア:

[(1, 21872977), (7, 3124711), (23, 950999), (103, 212359), (161, 135857), (721, 30337), (1319, 16583), (2369, 9233)]