20621146

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{3907}}^1$

素因数の和:3958

約数の個数: 32

約数和(自身を含む): 39392640

約数和(自身を除く): 18771494

約数列:

[1, 2, 7, 13, 14, 26, 29, 58, 91, 182, 203, 377, 406, 754, 2639, 3907, 5278, 7814, 27349, 50791, 54698, 101582, 113303, 226606, 355537, 711074, 793121, 1472939, 1586242, 2945878, 10310573, 20621146]

約数ペア:

[(1, 20621146), (2, 10310573), (7, 2945878), (13, 1586242), (14, 1472939), (26, 793121), (29, 711074), (58, 355537), (91, 226606), (182, 113303), (203, 101582), (377, 54698), (406, 50791), (754, 27349), (2639, 7814), (3907, 5278)]