245480781

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{263}}^2$

素因数の和:562

約数の個数: 36

約数和(自身を含む): 406599648

約数和(自身を除く): 161118867

約数列:

[1, 3, 7, 13, 21, 39, 91, 169, 263, 273, 507, 789, 1183, 1841, 3419, 3549, 5523, 10257, 23933, 44447, 69169, 71799, 133341, 207507, 311129, 484183, 899197, 933387, 1452549, 2697591, 6294379, 11689561, 18883137, 35068683, 81826927, 245480781]

約数ペア:

[(1, 245480781), (3, 81826927), (7, 35068683), (13, 18883137), (21, 11689561), (39, 6294379), (91, 2697591), (169, 1452549), (263, 933387), (273, 899197), (507, 484183), (789, 311129), (1183, 207507), (1841, 133341), (3419, 71799), (3549, 69169), (5523, 44447), (10257, 23933)]