20288618

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{857}}^1$

素因数の和:974

約数の個数: 32

約数和(自身を含む): 37065600

約数和(自身を除く): 16776982

約数列:

[1, 2, 7, 14, 19, 38, 89, 133, 178, 266, 623, 857, 1246, 1691, 1714, 3382, 5999, 11837, 11998, 16283, 23674, 32566, 76273, 113981, 152546, 227962, 533911, 1067822, 1449187, 2898374, 10144309, 20288618]

約数ペア:

[(1, 20288618), (2, 10144309), (7, 2898374), (14, 1449187), (19, 1067822), (38, 533911), (89, 227962), (133, 152546), (178, 113981), (266, 76273), (623, 32566), (857, 23674), (1246, 16283), (1691, 11998), (1714, 11837), (3382, 5999)]