21298376

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{1399}}^1$

素因数の和:1589

約数の個数: 32

約数和(自身を含む): 43848000

約数和(自身を除く): 22549624

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 173, 346, 692, 1384, 1399, 1903, 2798, 3806, 5596, 7612, 11192, 15224, 15389, 30778, 61556, 123112, 242027, 484054, 968108, 1936216, 2662297, 5324594, 10649188, 21298376]

約数ペア:

[(1, 21298376), (2, 10649188), (4, 5324594), (8, 2662297), (11, 1936216), (22, 968108), (44, 484054), (88, 242027), (173, 123112), (346, 61556), (692, 30778), (1384, 15389), (1399, 15224), (1903, 11192), (2798, 7612), (3806, 5596)]