2720333

素因数分解:

$7^4\times {\mathrm{11}}^1\times {\mathrm{103}}^1$

素因数の和:142

約数の個数: 20

約数和(自身を含む): 3495648

約数和(自身を除く): 775315

約数列:

[1, 7, 11, 49, 77, 103, 343, 539, 721, 1133, 2401, 3773, 5047, 7931, 26411, 35329, 55517, 247303, 388619, 2720333]

約数ペア:

[(1, 2720333), (7, 388619), (11, 247303), (49, 55517), (77, 35329), (103, 26411), (343, 7931), (539, 5047), (721, 3773), (1133, 2401)]