7977609

素因数分解:

$3^4\times {\mathrm{149}}^1\times {\mathrm{661}}^1$

素因数の和:822

約数の個数: 20

約数和(自身を含む): 12015300

約数和(自身を除く): 4037691

約数列:

[1, 3, 9, 27, 81, 149, 447, 661, 1341, 1983, 4023, 5949, 12069, 17847, 53541, 98489, 295467, 886401, 2659203, 7977609]

約数ペア:

[(1, 7977609), (3, 2659203), (9, 886401), (27, 295467), (81, 98489), (149, 53541), (447, 17847), (661, 12069), (1341, 5949), (1983, 4023)]