20691268

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{13721}}^1$

素因数の和:13767

約数の個数: 24

約数和(自身を含む): 40342680

約数和(自身を除く): 19651412

約数列:

[1, 2, 4, 13, 26, 29, 52, 58, 116, 377, 754, 1508, 13721, 27442, 54884, 178373, 356746, 397909, 713492, 795818, 1591636, 5172817, 10345634, 20691268]

約数ペア:

[(1, 20691268), (2, 10345634), (4, 5172817), (13, 1591636), (26, 795818), (29, 713492), (52, 397909), (58, 356746), (116, 178373), (377, 54884), (754, 27442), (1508, 13721)]