21202940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{96377}}^1$

素因数の和:96397

約数の個数: 24

約数和(自身を含む): 48574512

約数和(自身を除く): 27371572

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 96377, 192754, 385508, 481885, 963770, 1060147, 1927540, 2120294, 4240588, 5300735, 10601470, 21202940]

約数ペア:

[(1, 21202940), (2, 10601470), (4, 5300735), (5, 4240588), (10, 2120294), (11, 1927540), (20, 1060147), (22, 963770), (44, 481885), (55, 385508), (110, 192754), (220, 96377)]