18728867

素因数分解:

${\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{251}}^1$

素因数の和:394

約数の個数: 16

約数和(自身を含む): 20321280

約数和(自身を除く): 1592413

約数列:

[1, 29, 31, 83, 251, 899, 2407, 2573, 7279, 7781, 20833, 74617, 225649, 604157, 645823, 18728867]

約数ペア:

[(1, 18728867), (29, 645823), (31, 604157), (83, 225649), (251, 74617), (899, 20833), (2407, 7781), (2573, 7279)]