21906940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{99577}}^1$

素因数の和:99597

約数の個数: 24

約数和(自身を含む): 50187312

約数和(自身を除く): 28280372

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 99577, 199154, 398308, 497885, 995770, 1095347, 1991540, 2190694, 4381388, 5476735, 10953470, 21906940]

約数ペア:

[(1, 21906940), (2, 10953470), (4, 5476735), (5, 4381388), (10, 2190694), (11, 1991540), (20, 1095347), (22, 995770), (44, 497885), (55, 398308), (110, 199154), (220, 99577)]