12720812

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{1097}}^1$

素因数の和:1337

約数の個数: 24

約数和(自身を含む): 24103296

約数和(自身を除く): 11382484

約数列:

[1, 2, 4, 13, 26, 52, 223, 446, 892, 1097, 2194, 2899, 4388, 5798, 11596, 14261, 28522, 57044, 244631, 489262, 978524, 3180203, 6360406, 12720812]

約数ペア:

[(1, 12720812), (2, 6360406), (4, 3180203), (13, 978524), (26, 489262), (52, 244631), (223, 57044), (446, 28522), (892, 14261), (1097, 11596), (2194, 5798), (2899, 4388)]