20281545

素因数分解:

$3^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{7639}}^1$

素因数の和:7709

約数の個数: 24

約数和(自身を含む): 35755200

約数和(自身を除く): 15473655

約数列:

[1, 3, 5, 9, 15, 45, 59, 177, 295, 531, 885, 2655, 7639, 22917, 38195, 68751, 114585, 343755, 450701, 1352103, 2253505, 4056309, 6760515, 20281545]

約数ペア:

[(1, 20281545), (3, 6760515), (5, 4056309), (9, 2253505), (15, 1352103), (45, 450701), (59, 343755), (177, 114585), (295, 68751), (531, 38195), (885, 22917), (2655, 7639)]