281639673

素因数分解:

$3^7\times 7^1\times {\mathrm{18397}}^1$

素因数の和:18425

約数の個数: 32

約数和(自身を含む): 482763520

約数和(自身を除く): 201123847

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 729, 1701, 2187, 5103, 15309, 18397, 55191, 128779, 165573, 386337, 496719, 1159011, 1490157, 3477033, 4470471, 10431099, 13411413, 31293297, 40234239, 93879891, 281639673]

約数ペア:

[(1, 281639673), (3, 93879891), (7, 40234239), (9, 31293297), (21, 13411413), (27, 10431099), (63, 4470471), (81, 3477033), (189, 1490157), (243, 1159011), (567, 496719), (729, 386337), (1701, 165573), (2187, 128779), (5103, 55191), (15309, 18397)]