19902886

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{8737}}^1$

素因数の和:8823

約数の個数: 16

約数和(自身を含む): 32085936

約数和(自身を除く): 12183050

約数列:

[1, 2, 17, 34, 67, 134, 1139, 2278, 8737, 17474, 148529, 297058, 585379, 1170758, 9951443, 19902886]

約数ペア:

[(1, 19902886), (2, 9951443), (17, 1170758), (34, 585379), (67, 297058), (134, 148529), (1139, 17474), (2278, 8737)]