20916786

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{613}}^1$

素因数の和:687

約数の個数: 48

約数和(自身を含む): 47037312

約数和(自身を除く): 26120526

約数列:

[1, 2, 3, 6, 11, 22, 33, 47, 66, 94, 121, 141, 242, 282, 363, 517, 613, 726, 1034, 1226, 1551, 1839, 3102, 3678, 5687, 6743, 11374, 13486, 17061, 20229, 28811, 34122, 40458, 57622, 74173, 86433, 148346, 172866, 222519, 316921, 445038, 633842, 950763, 1901526, 3486131, 6972262, 10458393, 20916786]

約数ペア:

[(1, 20916786), (2, 10458393), (3, 6972262), (6, 3486131), (11, 1901526), (22, 950763), (33, 633842), (47, 445038), (66, 316921), (94, 222519), (121, 172866), (141, 148346), (242, 86433), (282, 74173), (363, 57622), (517, 40458), (613, 34122), (726, 28811), (1034, 20229), (1226, 17061), (1551, 13486), (1839, 11374), (3102, 6743), (3678, 5687)]