18820923

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{181}}^1$

素因数の和:355

約数の個数: 32

約数和(自身を含む): 28933632

約数和(自身を除く): 10112709

約数列:

[1, 3, 11, 23, 33, 69, 137, 181, 253, 411, 543, 759, 1507, 1991, 3151, 4163, 4521, 5973, 9453, 12489, 24797, 34661, 45793, 74391, 103983, 137379, 272767, 570331, 818301, 1710993, 6273641, 18820923]

約数ペア:

[(1, 18820923), (3, 6273641), (11, 1710993), (23, 818301), (33, 570331), (69, 272767), (137, 137379), (181, 103983), (253, 74391), (411, 45793), (543, 34661), (759, 24797), (1507, 12489), (1991, 9453), (3151, 5973), (4163, 4521)]