9981839

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{521}}^1$

素因数の和:575

約数の個数: 24

約数和(自身を含む): 12853728

約数和(自身を除く): 2871889

約数列:

[1, 7, 17, 23, 49, 119, 161, 391, 521, 833, 1127, 2737, 3647, 8857, 11983, 19159, 25529, 61999, 83881, 203711, 433993, 587167, 1425977, 9981839]

約数ペア:

[(1, 9981839), (7, 1425977), (17, 587167), (23, 433993), (49, 203711), (119, 83881), (161, 61999), (391, 25529), (521, 19159), (833, 11983), (1127, 8857), (2737, 3647)]