64127781

素因数分解:

$3^4\times {\mathrm{619}}^1\times {\mathrm{1279}}^1$

素因数の和:1910

約数の個数: 20

約数和(自身を含む): 96025600

約数和(自身を除く): 31897819

約数列:

[1, 3, 9, 27, 81, 619, 1279, 1857, 3837, 5571, 11511, 16713, 34533, 50139, 103599, 791701, 2375103, 7125309, 21375927, 64127781]

約数ペア:

[(1, 64127781), (3, 21375927), (9, 7125309), (27, 2375103), (81, 791701), (619, 103599), (1279, 50139), (1857, 34533), (3837, 16713), (5571, 11511)]