7840071

素因数分解:

$3^4\times {\mathrm{151}}^1\times {\mathrm{641}}^1$

素因数の和:804

約数の個数: 20

約数和(自身を含む): 11807664

約数和(自身を除く): 3967593

約数列:

[1, 3, 9, 27, 81, 151, 453, 641, 1359, 1923, 4077, 5769, 12231, 17307, 51921, 96791, 290373, 871119, 2613357, 7840071]

約数ペア:

[(1, 7840071), (3, 2613357), (9, 871119), (27, 290373), (81, 96791), (151, 51921), (453, 17307), (641, 12231), (1359, 5769), (1923, 4077)]