31388958

素因数分解:

$2^1\times 3^4\times {\mathrm{71}}^1\times {\mathrm{2729}}^1$

素因数の和:2814

約数の個数: 40

約数和(自身を含む): 71351280

約数和(自身を除く): 39962322

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 71, 81, 142, 162, 213, 426, 639, 1278, 1917, 2729, 3834, 5458, 5751, 8187, 11502, 16374, 24561, 49122, 73683, 147366, 193759, 221049, 387518, 442098, 581277, 1162554, 1743831, 3487662, 5231493, 10462986, 15694479, 31388958]

約数ペア:

[(1, 31388958), (2, 15694479), (3, 10462986), (6, 5231493), (9, 3487662), (18, 1743831), (27, 1162554), (54, 581277), (71, 442098), (81, 387518), (142, 221049), (162, 193759), (213, 147366), (426, 73683), (639, 49122), (1278, 24561), (1917, 16374), (2729, 11502), (3834, 8187), (5458, 5751)]