20992127

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^2$

素因数の和:167

約数の個数: 24

約数和(自身を含む): 25025616

約数和(自身を除く): 4033489

約数列:

[1, 13, 17, 43, 47, 221, 559, 611, 731, 799, 2021, 2209, 9503, 10387, 26273, 28717, 34357, 37553, 94987, 446641, 488189, 1234831, 1614779, 20992127]

約数ペア:

[(1, 20992127), (13, 1614779), (17, 1234831), (43, 488189), (47, 446641), (221, 94987), (559, 37553), (611, 34357), (731, 28717), (799, 26273), (2021, 10387), (2209, 9503)]