1281358

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{223}}^1$

素因数の和:268

約数の個数: 24

約数和(自身を含む): 2213568

約数和(自身を除く): 932210

約数列:

[1, 2, 13, 17, 26, 34, 169, 221, 223, 338, 442, 446, 2873, 2899, 3791, 5746, 5798, 7582, 37687, 49283, 75374, 98566, 640679, 1281358]

約数ペア:

[(1, 1281358), (2, 640679), (13, 98566), (17, 75374), (26, 49283), (34, 37687), (169, 7582), (221, 5798), (223, 5746), (338, 3791), (442, 2899), (446, 2873)]