20751849

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1559}}^1$

素因数の和:1614

約数の個数: 32

約数和(自身を含む): 33696000

約数和(自身を除く): 12944151

約数列:

[1, 3, 9, 17, 27, 29, 51, 87, 153, 261, 459, 493, 783, 1479, 1559, 4437, 4677, 13311, 14031, 26503, 42093, 45211, 79509, 135633, 238527, 406899, 715581, 768587, 1220697, 2305761, 6917283, 20751849]

約数ペア:

[(1, 20751849), (3, 6917283), (9, 2305761), (17, 1220697), (27, 768587), (29, 715581), (51, 406899), (87, 238527), (153, 135633), (261, 79509), (459, 45211), (493, 42093), (783, 26503), (1479, 14031), (1559, 13311), (4437, 4677)]