20809418

素因数分解:

$2^1\times 7^2\times {\mathrm{59}}^2\times {\mathrm{61}}^1$

素因数の和:195

約数の個数: 36

約数和(自身を含む): 37541682

約数和(自身を除く): 16732264

約数列:

[1, 2, 7, 14, 49, 59, 61, 98, 118, 122, 413, 427, 826, 854, 2891, 2989, 3481, 3599, 5782, 5978, 6962, 7198, 24367, 25193, 48734, 50386, 170569, 176351, 212341, 341138, 352702, 424682, 1486387, 2972774, 10404709, 20809418]

約数ペア:

[(1, 20809418), (2, 10404709), (7, 2972774), (14, 1486387), (49, 424682), (59, 352702), (61, 341138), (98, 212341), (118, 176351), (122, 170569), (413, 50386), (427, 48734), (826, 25193), (854, 24367), (2891, 7198), (2989, 6962), (3481, 5978), (3599, 5782)]