21022778

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{4649}}^1$

素因数の和:4694

約数の個数: 32

約数和(自身を含む): 40176000

約数和(自身を除く): 19153222

約数列:

[1, 2, 7, 14, 17, 19, 34, 38, 119, 133, 238, 266, 323, 646, 2261, 4522, 4649, 9298, 32543, 65086, 79033, 88331, 158066, 176662, 553231, 618317, 1106462, 1236634, 1501627, 3003254, 10511389, 21022778]

約数ペア:

[(1, 21022778), (2, 10511389), (7, 3003254), (14, 1501627), (17, 1236634), (19, 1106462), (34, 618317), (38, 553231), (119, 176662), (133, 158066), (238, 88331), (266, 79033), (323, 65086), (646, 32543), (2261, 9298), (4522, 4649)]