1278803127

素因数分解:

$3^1\times 7^3\times {\mathrm{1242763}}^1$

素因数の和:1242787

約数の個数: 16

約数和(自身を含む): 1988422400

約数和(自身を除く): 709619273

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 1242763, 3728289, 8699341, 26098023, 60895387, 182686161, 426267709, 1278803127]

約数ペア:

[(1, 1278803127), (3, 426267709), (7, 182686161), (21, 60895387), (49, 26098023), (147, 8699341), (343, 3728289), (1029, 1242763)]