21550522

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{81017}}^1$

素因数の和:81045

約数の個数: 16

約数和(自身を含む): 38888640

約数和(自身を除く): 17338118

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 81017, 162034, 567119, 1134238, 1539323, 3078646, 10775261, 21550522]

約数ペア:

[(1, 21550522), (2, 10775261), (7, 3078646), (14, 1539323), (19, 1134238), (38, 567119), (133, 162034), (266, 81017)]