291249879

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{331}}^1\times {\mathrm{359}}^1$

素因数の和:755

約数の個数: 32

約数和(自身を含む): 420710400

約数和(自身を除く): 129460521

約数列:

[1, 3, 19, 43, 57, 129, 331, 359, 817, 993, 1077, 2451, 6289, 6821, 14233, 15437, 18867, 20463, 42699, 46311, 118829, 270427, 293303, 356487, 811281, 879909, 2257751, 5109647, 6773253, 15328941, 97083293, 291249879]

約数ペア:

[(1, 291249879), (3, 97083293), (19, 15328941), (43, 6773253), (57, 5109647), (129, 2257751), (331, 879909), (359, 811281), (817, 356487), (993, 293303), (1077, 270427), (2451, 118829), (6289, 46311), (6821, 42699), (14233, 20463), (15437, 18867)]