20643268

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{257}}^1\times {\mathrm{467}}^1$

素因数の和:771

約数の個数: 24

約数和(自身を含む): 37189152

約数和(自身を除く): 16545884

約数列:

[1, 2, 4, 43, 86, 172, 257, 467, 514, 934, 1028, 1868, 11051, 20081, 22102, 40162, 44204, 80324, 120019, 240038, 480076, 5160817, 10321634, 20643268]

約数ペア:

[(1, 20643268), (2, 10321634), (4, 5160817), (43, 480076), (86, 240038), (172, 120019), (257, 80324), (467, 44204), (514, 40162), (934, 22102), (1028, 20081), (1868, 11051)]