20794051216

素因数分解:

$2^4\times {\mathrm{2081}}^1\times {\mathrm{624521}}^1$

素因数の和:626610

約数の個数: 20

約数和(自身を含む): 40307898924

約数和(自身を除く): 19513847708

約数列:

[1, 2, 4, 8, 16, 2081, 4162, 8324, 16648, 33296, 624521, 1249042, 2498084, 4996168, 9992336, 1299628201, 2599256402, 5198512804, 10397025608, 20794051216]

約数ペア:

[(1, 20794051216), (2, 10397025608), (4, 5198512804), (8, 2599256402), (16, 1299628201), (2081, 9992336), (4162, 4996168), (8324, 2498084), (16648, 1249042), (33296, 624521)]