18941489

素因数分解:

$7^7\times {\mathrm{23}}^1$

素因数の和:72

約数の個数: 16

約数和(自身を含む): 23059200

約数和(自身を除く): 4117711

約数列:

[1, 7, 23, 49, 161, 343, 1127, 2401, 7889, 16807, 55223, 117649, 386561, 823543, 2705927, 18941489]

約数ペア:

[(1, 18941489), (7, 2705927), (23, 823543), (49, 386561), (161, 117649), (343, 55223), (1127, 16807), (2401, 7889)]