6720021

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{9697}}^1$

素因数の和:9721

約数の個数: 24

約数和(自身を含む): 12103104

約数和(自身を除く): 5383083

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693, 9697, 29091, 67879, 87273, 106667, 203637, 320001, 610911, 746669, 960003, 2240007, 6720021]

約数ペア:

[(1, 6720021), (3, 2240007), (7, 960003), (9, 746669), (11, 610911), (21, 320001), (33, 203637), (63, 106667), (77, 87273), (99, 67879), (231, 29091), (693, 9697)]