21689372

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{2683}}^1$

素因数の和:2777

約数の個数: 24

約数和(自身を含む): 39680256

約数和(自身を除く): 17990884

約数列:

[1, 2, 4, 43, 47, 86, 94, 172, 188, 2021, 2683, 4042, 5366, 8084, 10732, 115369, 126101, 230738, 252202, 461476, 504404, 5422343, 10844686, 21689372]

約数ペア:

[(1, 21689372), (2, 10844686), (4, 5422343), (43, 504404), (47, 461476), (86, 252202), (94, 230738), (172, 126101), (188, 115369), (2021, 10732), (2683, 8084), (4042, 5366)]