21648676

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{40693}}^1$

素因数の和:40723

約数の個数: 24

約数和(自身を含む): 45577280

約数和(自身を除く): 23928604

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 40693, 81386, 162772, 284851, 569702, 773167, 1139404, 1546334, 3092668, 5412169, 10824338, 21648676]

約数ペア:

[(1, 21648676), (2, 10824338), (4, 5412169), (7, 3092668), (14, 1546334), (19, 1139404), (28, 773167), (38, 569702), (76, 284851), (133, 162772), (266, 81386), (532, 40693)]