20894155

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{827}}^1$

素因数の和:1026

約数の個数: 16

約数和(自身を含む): 26072064

約数和(自身を除く): 5177909

約数列:

[1, 5, 31, 155, 163, 815, 827, 4135, 5053, 25265, 25637, 128185, 134801, 674005, 4178831, 20894155]

約数ペア:

[(1, 20894155), (5, 4178831), (31, 674005), (155, 134801), (163, 128185), (815, 25637), (827, 25265), (4135, 5053)]