3990357

素因数分解:

$3^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{491}}^1$

素因数の和:550

約数の個数: 32

約数和(自身を含む): 6927360

約数和(自身を除く): 2937003

約数列:

[1, 3, 7, 9, 21, 27, 43, 63, 129, 189, 301, 387, 491, 903, 1161, 1473, 2709, 3437, 4419, 8127, 10311, 13257, 21113, 30933, 63339, 92799, 147791, 190017, 443373, 570051, 1330119, 3990357]

約数ペア:

[(1, 3990357), (3, 1330119), (7, 570051), (9, 443373), (21, 190017), (27, 147791), (43, 92799), (63, 63339), (129, 30933), (189, 21113), (301, 13257), (387, 10311), (491, 8127), (903, 4419), (1161, 3437), (1473, 2709)]