20618936

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{198259}}^1$

素因数の和:198278

約数の個数: 16

約数和(自身を含む): 41634600

約数和(自身を除く): 21015664

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 198259, 396518, 793036, 1586072, 2577367, 5154734, 10309468, 20618936]

約数ペア:

[(1, 20618936), (2, 10309468), (4, 5154734), (8, 2577367), (13, 1586072), (26, 793036), (52, 396518), (104, 198259)]