20188221772

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{13980763}}^1$

素因数の和:13980805

約数の個数: 18

約数和(自身を含む): 37286697588

約数和(自身を除く): 17098475816

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 13980763, 27961526, 55923052, 265634497, 531268994, 1062537988, 5047055443, 10094110886, 20188221772]

約数ペア:

[(1, 20188221772), (2, 10094110886), (4, 5047055443), (19, 1062537988), (38, 531268994), (76, 265634497), (361, 55923052), (722, 27961526), (1444, 13980763)]