198554013

素因数分解:

$3^2\times 7^1\times {\mathrm{691}}^1\times {\mathrm{4561}}^1$

素因数の和:5265

約数の個数: 24

約数和(自身を含む): 328318016

約数和(自身を除く): 129764003

約数列:

[1, 3, 7, 9, 21, 63, 691, 2073, 4561, 4837, 6219, 13683, 14511, 31927, 41049, 43533, 95781, 287343, 3151651, 9454953, 22061557, 28364859, 66184671, 198554013]

約数ペア:

[(1, 198554013), (3, 66184671), (7, 28364859), (9, 22061557), (21, 9454953), (63, 3151651), (691, 287343), (2073, 95781), (4561, 43533), (4837, 41049), (6219, 31927), (13683, 14511)]