25688481

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1289}}^1$

素因数の和:1385

約数の個数: 32

約数和(自身を含む): 42766080

約数和(自身を除く): 17077599

約数列:

[1, 3, 7, 13, 21, 39, 73, 91, 219, 273, 511, 949, 1289, 1533, 2847, 3867, 6643, 9023, 16757, 19929, 27069, 50271, 94097, 117299, 282291, 351897, 658679, 1223261, 1976037, 3669783, 8562827, 25688481]

約数ペア:

[(1, 25688481), (3, 8562827), (7, 3669783), (13, 1976037), (21, 1223261), (39, 658679), (73, 351897), (91, 282291), (219, 117299), (273, 94097), (511, 50271), (949, 27069), (1289, 19929), (1533, 16757), (2847, 9023), (3867, 6643)]