20493755

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{461}}^1\times {\mathrm{523}}^1$

素因数の和:1006

約数の個数: 16

約数和(自身を含む): 26145504

約数和(自身を除く): 5651749

約数列:

[1, 5, 17, 85, 461, 523, 2305, 2615, 7837, 8891, 39185, 44455, 241103, 1205515, 4098751, 20493755]

約数ペア:

[(1, 20493755), (5, 4098751), (17, 1205515), (85, 241103), (461, 44455), (523, 39185), (2305, 8891), (2615, 7837)]