28008639

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{439}}^1$

素因数の和:604

約数の個数: 32

約数和(自身を含む): 44352000

約数和(自身を除く): 16343361

約数列:

[1, 3, 9, 17, 27, 51, 139, 153, 417, 439, 459, 1251, 1317, 2363, 3753, 3951, 7089, 7463, 11853, 21267, 22389, 61021, 63801, 67167, 183063, 201501, 549189, 1037357, 1647567, 3112071, 9336213, 28008639]

約数ペア:

[(1, 28008639), (3, 9336213), (9, 3112071), (17, 1647567), (27, 1037357), (51, 549189), (139, 201501), (153, 183063), (417, 67167), (439, 63801), (459, 61021), (1251, 22389), (1317, 21267), (2363, 11853), (3753, 7463), (3951, 7089)]