19859620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{90271}}^1$

素因数の和:90291

約数の個数: 24

約数和(自身を含む): 45497088

約数和(自身を除く): 25637468

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 90271, 180542, 361084, 451355, 902710, 992981, 1805420, 1985962, 3971924, 4964905, 9929810, 19859620]

約数ペア:

[(1, 19859620), (2, 9929810), (4, 4964905), (5, 3971924), (10, 1985962), (11, 1805420), (20, 992981), (22, 902710), (44, 451355), (55, 361084), (110, 180542), (220, 90271)]