289278717

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{19993}}^1$

素因数の和:20069

約数の個数: 32

約数和(自身を含む): 483694848

約数和(自身を除く): 194416131

約数列:

[1, 3, 7, 13, 21, 39, 53, 91, 159, 273, 371, 689, 1113, 2067, 4823, 14469, 19993, 59979, 139951, 259909, 419853, 779727, 1059629, 1819363, 3178887, 5458089, 7417403, 13775177, 22252209, 41325531, 96426239, 289278717]

約数ペア:

[(1, 289278717), (3, 96426239), (7, 41325531), (13, 22252209), (21, 13775177), (39, 7417403), (53, 5458089), (91, 3178887), (159, 1819363), (273, 1059629), (371, 779727), (689, 419853), (1113, 259909), (2067, 139951), (4823, 59979), (14469, 19993)]