21852806980

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{169691}}^1$

素因数の和:169884

約数の個数: 48

約数和(自身を含む): 47209671936

約数和(自身を除く): 25356864956

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 137, 188, 235, 274, 470, 548, 685, 940, 1370, 2740, 6439, 12878, 25756, 32195, 64390, 128780, 169691, 339382, 678764, 848455, 1696910, 3393820, 7975477, 15950954, 23247667, 31901908, 39877385, 46495334, 79754770, 92990668, 116238335, 159509540, 232476670, 464953340, 1092640349, 2185280698, 4370561396, 5463201745, 10926403490, 21852806980]

約数ペア:

[(1, 21852806980), (2, 10926403490), (4, 5463201745), (5, 4370561396), (10, 2185280698), (20, 1092640349), (47, 464953340), (94, 232476670), (137, 159509540), (188, 116238335), (235, 92990668), (274, 79754770), (470, 46495334), (548, 39877385), (685, 31901908), (940, 23247667), (1370, 15950954), (2740, 7975477), (6439, 3393820), (12878, 1696910), (25756, 848455), (32195, 678764), (64390, 339382), (128780, 169691)]