20872222

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{78467}}^1$

素因数の和:78495

約数の個数: 16

約数和(自身を含む): 37664640

約数和(自身を除く): 16792418

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 78467, 156934, 549269, 1098538, 1490873, 2981746, 10436111, 20872222]

約数ペア:

[(1, 20872222), (2, 10436111), (7, 2981746), (14, 1490873), (19, 1098538), (38, 549269), (133, 156934), (266, 78467)]