18221343

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{21163}}^1$

素因数の和:21214

約数の個数: 16

約数和(自身を含む): 28444416

約数和(自身を除く): 10223073

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 21163, 63489, 148141, 444423, 867683, 2603049, 6073781, 18221343]

約数ペア:

[(1, 18221343), (3, 6073781), (7, 2603049), (21, 867683), (41, 444423), (123, 148141), (287, 63489), (861, 21163)]