81478852

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{223843}}^1$

素因数の和:223867

約数の個数: 24

約数和(自身を含む): 175493696

約数和(自身を除く): 94014844

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 223843, 447686, 895372, 1566901, 2909959, 3133802, 5819918, 6267604, 11639836, 20369713, 40739426, 81478852]

約数ペア:

[(1, 81478852), (2, 40739426), (4, 20369713), (7, 11639836), (13, 6267604), (14, 5819918), (26, 3133802), (28, 2909959), (52, 1566901), (91, 895372), (182, 447686), (364, 223843)]