20121261285

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{78906907}}^1$

素因数の和:78906932

約数の個数: 16

約数和(自身を含む): 34087784256

約数和(自身を除く): 13966522971

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 78906907, 236720721, 394534535, 1183603605, 1341417419, 4024252257, 6707087095, 20121261285]

約数ペア:

[(1, 20121261285), (3, 6707087095), (5, 4024252257), (15, 1341417419), (17, 1183603605), (51, 394534535), (85, 236720721), (255, 78906907)]