263978

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{71}}^1$

素因数の和:110

約数の個数: 24

約数和(自身を含む): 474336

約数和(自身を除く): 210358

約数列:

[1, 2, 11, 13, 22, 26, 71, 142, 143, 169, 286, 338, 781, 923, 1562, 1846, 1859, 3718, 10153, 11999, 20306, 23998, 131989, 263978]

約数ペア:

[(1, 263978), (2, 131989), (11, 23998), (13, 20306), (22, 11999), (26, 10153), (71, 3718), (142, 1859), (143, 1846), (169, 1562), (286, 923), (338, 781)]