16921261

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{227}}^1\times {\mathrm{463}}^1$

素因数の和:720

約数の個数: 16

約数和(自身を含む): 20312064

約数和(自身を除く): 3390803

約数列:

[1, 7, 23, 161, 227, 463, 1589, 3241, 5221, 10649, 36547, 74543, 105101, 735707, 2417323, 16921261]

約数ペア:

[(1, 16921261), (7, 2417323), (23, 735707), (161, 105101), (227, 74543), (463, 36547), (1589, 10649), (3241, 5221)]