20397364

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{1759}}^1$

素因数の和:1999

約数の個数: 24

約数和(自身を含む): 38635520

約数和(自身を除く): 18238156

約数列:

[1, 2, 4, 13, 26, 52, 223, 446, 892, 1759, 2899, 3518, 5798, 7036, 11596, 22867, 45734, 91468, 392257, 784514, 1569028, 5099341, 10198682, 20397364]

約数ペア:

[(1, 20397364), (2, 10198682), (4, 5099341), (13, 1569028), (26, 784514), (52, 392257), (223, 91468), (446, 45734), (892, 22867), (1759, 11596), (2899, 7036), (3518, 5798)]