20649503

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{2213}}^1$

素因数の和:2294

約数の個数: 16

約数和(自身を含む): 24938496

約数和(自身を除く): 4288993

約数列:

[1, 7, 31, 43, 217, 301, 1333, 2213, 9331, 15491, 68603, 95159, 480221, 666113, 2949929, 20649503]

約数ペア:

[(1, 20649503), (7, 2949929), (31, 666113), (43, 480221), (217, 95159), (301, 68603), (1333, 15491), (2213, 9331)]