20236545

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{3779}}^1$

素因数の和:3814

約数の個数: 48

約数和(自身を含む): 42456960

約数和(自身を除く): 22220415

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 35, 45, 51, 63, 85, 105, 119, 153, 255, 315, 357, 595, 765, 1071, 1785, 3779, 5355, 11337, 18895, 26453, 34011, 56685, 64243, 79359, 132265, 170055, 192729, 238077, 321215, 396795, 449701, 578187, 963645, 1190385, 1349103, 2248505, 2890935, 4047309, 6745515, 20236545]

約数ペア:

[(1, 20236545), (3, 6745515), (5, 4047309), (7, 2890935), (9, 2248505), (15, 1349103), (17, 1190385), (21, 963645), (35, 578187), (45, 449701), (51, 396795), (63, 321215), (85, 238077), (105, 192729), (119, 170055), (153, 132265), (255, 79359), (315, 64243), (357, 56685), (595, 34011), (765, 26453), (1071, 18895), (1785, 11337), (3779, 5355)]