21977420

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47777}}^1$

素因数の和:47809

約数の個数: 24

約数和(自身を含む): 48160224

約数和(自身を除く): 26182804

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 47777, 95554, 191108, 238885, 477770, 955540, 1098871, 2197742, 4395484, 5494355, 10988710, 21977420]

約数ペア:

[(1, 21977420), (2, 10988710), (4, 5494355), (5, 4395484), (10, 2197742), (20, 1098871), (23, 955540), (46, 477770), (92, 238885), (115, 191108), (230, 95554), (460, 47777)]