81489807

素因数分解:

$3^7\times 7^1\times {\mathrm{5323}}^1$

素因数の和:5351

約数の個数: 32

約数和(自身を含む): 139701760

約数和(自身を除く): 58211953

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 729, 1701, 2187, 5103, 5323, 15309, 15969, 37261, 47907, 111783, 143721, 335349, 431163, 1006047, 1293489, 3018141, 3880467, 9054423, 11641401, 27163269, 81489807]

約数ペア:

[(1, 81489807), (3, 27163269), (7, 11641401), (9, 9054423), (21, 3880467), (27, 3018141), (63, 1293489), (81, 1006047), (189, 431163), (243, 335349), (567, 143721), (729, 111783), (1701, 47907), (2187, 37261), (5103, 15969), (5323, 15309)]