20581434

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{26591}}^1$

素因数の和:26642

約数の個数: 24

約数和(自身を含む): 45631872

約数和(自身を除く): 25050438

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387, 774, 26591, 53182, 79773, 159546, 239319, 478638, 1143413, 2286826, 3430239, 6860478, 10290717, 20581434]

約数ペア:

[(1, 20581434), (2, 10290717), (3, 6860478), (6, 3430239), (9, 2286826), (18, 1143413), (43, 478638), (86, 239319), (129, 159546), (258, 79773), (387, 53182), (774, 26591)]