19209911842

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{79379801}}^1$

素因数の和:79379825

約数の個数: 12

約数和(自身を含む): 31672540998

約数和(自身を除く): 12462629156

約数列:

[1, 2, 11, 22, 121, 242, 79379801, 158759602, 873177811, 1746355622, 9604955921, 19209911842]

約数ペア:

[(1, 19209911842), (2, 9604955921), (11, 1746355622), (22, 873177811), (121, 158759602), (242, 79379801)]