19065220

素因数分解:

$2^2\times 5^1\times {\mathrm{953261}}^1$

素因数の和:953270

約数の個数: 12

約数和(自身を含む): 40037004

約数和(自身を除く): 20971784

約数列:

[1, 2, 4, 5, 10, 20, 953261, 1906522, 3813044, 4766305, 9532610, 19065220]

約数ペア:

[(1, 19065220), (2, 9532610), (4, 4766305), (5, 3813044), (10, 1906522), (20, 953261)]