21892772

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{45233}}^1$

素因数の和:45259

約数の個数: 18

約数和(自身を含む): 42112854

約数和(自身を除く): 20220082

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 45233, 90466, 180932, 497563, 995126, 1990252, 5473193, 10946386, 21892772]

約数ペア:

[(1, 21892772), (2, 10946386), (4, 5473193), (11, 1990252), (22, 995126), (44, 497563), (121, 180932), (242, 90466), (484, 45233)]