2578121

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{691}}^1$

素因数の和:752

約数の個数: 16

約数和(自身を含む): 3255168

約数和(自身を除く): 677047

約数列:

[1, 7, 13, 41, 91, 287, 533, 691, 3731, 4837, 8983, 28331, 62881, 198317, 368303, 2578121]

約数ペア:

[(1, 2578121), (7, 368303), (13, 198317), (41, 62881), (91, 28331), (287, 8983), (533, 4837), (691, 3731)]