201991190842

素因数分解:

$2^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{68378873}}^1$

素因数の和:68379093

約数の個数: 16

約数和(自身を含む): 347911710912

約数和(自身を除く): 145920520070

約数列:

[1, 2, 7, 14, 211, 422, 1477, 2954, 68378873, 136757746, 478652111, 957304222, 14427942203, 28855884406, 100995595421, 201991190842]

約数ペア:

[(1, 201991190842), (2, 100995595421), (7, 28855884406), (14, 14427942203), (211, 957304222), (422, 478652111), (1477, 136757746), (2954, 68378873)]