77981859

素因数分解:

$3^7\times {\mathrm{181}}^1\times {\mathrm{197}}^1$

素因数の和:399

約数の個数: 32

約数和(自身を含む): 118198080

約数和(自身を除く): 40216221

約数列:

[1, 3, 9, 27, 81, 181, 197, 243, 543, 591, 729, 1629, 1773, 2187, 4887, 5319, 14661, 15957, 35657, 43983, 47871, 106971, 131949, 143613, 320913, 395847, 430839, 962739, 2888217, 8664651, 25993953, 77981859]

約数ペア:

[(1, 77981859), (3, 25993953), (9, 8664651), (27, 2888217), (81, 962739), (181, 430839), (197, 395847), (243, 320913), (543, 143613), (591, 131949), (729, 106971), (1629, 47871), (1773, 43983), (2187, 35657), (4887, 15957), (5319, 14661)]