21778668

素因数分解:

$2^2\times 3^2\times {\mathrm{701}}^1\times {\mathrm{863}}^1$

素因数の和:1574

約数の個数: 36

約数和(自身を含む): 55194048

約数和(自身を除く): 33415380

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 701, 863, 1402, 1726, 2103, 2589, 2804, 3452, 4206, 5178, 6309, 7767, 8412, 10356, 12618, 15534, 25236, 31068, 604963, 1209926, 1814889, 2419852, 3629778, 5444667, 7259556, 10889334, 21778668]

約数ペア:

[(1, 21778668), (2, 10889334), (3, 7259556), (4, 5444667), (6, 3629778), (9, 2419852), (12, 1814889), (18, 1209926), (36, 604963), (701, 31068), (863, 25236), (1402, 15534), (1726, 12618), (2103, 10356), (2589, 8412), (2804, 7767), (3452, 6309), (4206, 5178)]