20512946524

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^2\times {\mathrm{396217}}^1$

素因数の和:396314

約数の個数: 36

約数和(自身を含む): 42002277744

約数和(自身を除く): 21489331220

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 602, 1204, 1849, 3698, 7396, 12943, 25886, 51772, 396217, 792434, 1584868, 2773519, 5547038, 11094076, 17037331, 34074662, 68149324, 119261317, 238522634, 477045268, 732605233, 1465210466, 2930420932, 5128236631, 10256473262, 20512946524]

約数ペア:

[(1, 20512946524), (2, 10256473262), (4, 5128236631), (7, 2930420932), (14, 1465210466), (28, 732605233), (43, 477045268), (86, 238522634), (172, 119261317), (301, 68149324), (602, 34074662), (1204, 17037331), (1849, 11094076), (3698, 5547038), (7396, 2773519), (12943, 1584868), (25886, 792434), (51772, 396217)]