538661907

素因数分解:

$3^4\times 7^1\times {\mathrm{397}}^1\times {\mathrm{2393}}^1$

素因数の和:2809

約数の個数: 40

約数和(自身を含む): 922322016

約数和(自身を除く): 383660109

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 397, 567, 1191, 2393, 2779, 3573, 7179, 8337, 10719, 16751, 21537, 25011, 32157, 50253, 64611, 75033, 150759, 193833, 225099, 452277, 950021, 1356831, 2850063, 6650147, 8550189, 19950441, 25650567, 59851323, 76951701, 179553969, 538661907]

約数ペア:

[(1, 538661907), (3, 179553969), (7, 76951701), (9, 59851323), (21, 25650567), (27, 19950441), (63, 8550189), (81, 6650147), (189, 2850063), (397, 1356831), (567, 950021), (1191, 452277), (2393, 225099), (2779, 193833), (3573, 150759), (7179, 75033), (8337, 64611), (10719, 50253), (16751, 32157), (21537, 25011)]