18223947

素因数分解:

$3^4\times 7^1\times {\mathrm{32141}}^1$

素因数の和:32160

約数の個数: 20

約数和(自身を含む): 31113456

約数和(自身を除く): 12889509

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 32141, 96423, 224987, 289269, 674961, 867807, 2024883, 2603421, 6074649, 18223947]

約数ペア:

[(1, 18223947), (3, 6074649), (7, 2603421), (9, 2024883), (21, 867807), (27, 674961), (63, 289269), (81, 224987), (189, 96423), (567, 32141)]