18120311

素因数分解:

${\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1\times {\mathrm{223}}^1$

素因数の和:406

約数の個数: 16

約数和(自身を含む): 20321280

約数和(自身を除く): 2200969

約数列:

[1, 11, 83, 89, 223, 913, 979, 2453, 7387, 18509, 19847, 81257, 203599, 218317, 1647301, 18120311]

約数ペア:

[(1, 18120311), (11, 1647301), (83, 218317), (89, 203599), (223, 81257), (913, 19847), (979, 18509), (2453, 7387)]