20696809

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{751}}^1$

素因数の和:916

約数の個数: 16

約数和(自身を含む): 24641536

約数和(自身を除く): 3944727

約数列:

[1, 7, 31, 127, 217, 751, 889, 3937, 5257, 23281, 27559, 95377, 162967, 667639, 2956687, 20696809]

約数ペア:

[(1, 20696809), (7, 2956687), (31, 667639), (127, 162967), (217, 95377), (751, 27559), (889, 23281), (3937, 5257)]