18915339518

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{373}}^1\times {\mathrm{10303}}^1$

素因数の和:10808

約数の個数: 32

約数和(自身を含む): 29966340096

約数和(自身を除く): 11051000578

約数列:

[1, 2, 23, 46, 107, 214, 373, 746, 2461, 4922, 8579, 10303, 17158, 20606, 39911, 79822, 236969, 473938, 917953, 1102421, 1835906, 2204842, 3843019, 7686038, 25355683, 50711366, 88389437, 176778874, 411203033, 822406066, 9457669759, 18915339518]

約数ペア:

[(1, 18915339518), (2, 9457669759), (23, 822406066), (46, 411203033), (107, 176778874), (214, 88389437), (373, 50711366), (746, 25355683), (2461, 7686038), (4922, 3843019), (8579, 2204842), (10303, 1835906), (17158, 1102421), (20606, 917953), (39911, 473938), (79822, 236969)]