28133889

素因数分解:

$3^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{1439}}^1$

素因数の和:1482

約数の個数: 32

約数和(自身を含む): 46080000

約数和(自身を除く): 17946111

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 343, 399, 931, 1029, 1439, 2793, 4317, 6517, 10073, 19551, 27341, 30219, 70511, 82023, 191387, 211533, 493577, 574161, 1339709, 1480731, 4019127, 9377963, 28133889]

約数ペア:

[(1, 28133889), (3, 9377963), (7, 4019127), (19, 1480731), (21, 1339709), (49, 574161), (57, 493577), (133, 211533), (147, 191387), (343, 82023), (399, 70511), (931, 30219), (1029, 27341), (1439, 19551), (2793, 10073), (4317, 6517)]