816256521

素因数分解:

$3^4\times {\mathrm{1279}}^1\times {\mathrm{7879}}^1$

素因数の和:9170

約数の個数: 20

約数和(自身を含む): 1220454400

約数和(自身を除く): 404197879

約数列:

[1, 3, 9, 27, 81, 1279, 3837, 7879, 11511, 23637, 34533, 70911, 103599, 212733, 638199, 10077241, 30231723, 90695169, 272085507, 816256521]

約数ペア:

[(1, 816256521), (3, 272085507), (9, 90695169), (27, 30231723), (81, 10077241), (1279, 638199), (3837, 212733), (7879, 103599), (11511, 70911), (23637, 34533)]