20145630387813

素因数分解:

$3^1\times 7^4\times {\mathrm{2796838871}}^1$

素因数の和:2796838902

約数の個数: 20

約数和(自身を含む): 31335782721888

約数和(自身を除く): 11190152334075

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 2401, 7203, 2796838871, 8390516613, 19577872097, 58733616291, 137045104679, 411135314037, 959315732753, 2877947198259, 6715210129271, 20145630387813]

約数ペア:

[(1, 20145630387813), (3, 6715210129271), (7, 2877947198259), (21, 959315732753), (49, 411135314037), (147, 137045104679), (343, 58733616291), (1029, 19577872097), (2401, 8390516613), (7203, 2796838871)]