20809424

素因数分解:

$2^4\times {\mathrm{641}}^1\times {\mathrm{2029}}^1$

素因数の和:2678

約数の個数: 20

約数和(自身を含む): 40401060

約数和(自身を除く): 19591636

約数列:

[1, 2, 4, 8, 16, 641, 1282, 2029, 2564, 4058, 5128, 8116, 10256, 16232, 32464, 1300589, 2601178, 5202356, 10404712, 20809424]

約数ペア:

[(1, 20809424), (2, 10404712), (4, 5202356), (8, 2601178), (16, 1300589), (641, 32464), (1282, 16232), (2029, 10256), (2564, 8116), (4058, 5128)]