257204311

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{11443}}^1$

素因数の和:11495

約数の個数: 24

約数和(自身を含む): 335080320

約数和(自身を除く): 77876009

約数列:

[1, 7, 13, 19, 91, 133, 169, 247, 1183, 1729, 3211, 11443, 22477, 80101, 148759, 217417, 1041313, 1521919, 1933867, 2826421, 13537069, 19784947, 36743473, 257204311]

約数ペア:

[(1, 257204311), (7, 36743473), (13, 19784947), (19, 13537069), (91, 2826421), (133, 1933867), (169, 1521919), (247, 1041313), (1183, 217417), (1729, 148759), (3211, 80101), (11443, 22477)]