20857595

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{4261}}^1$

素因数の和:4366

約数の個数: 16

約数和(自身を含む): 27617760

約数和(自身を除く): 6760165

約数列:

[1, 5, 11, 55, 89, 445, 979, 4261, 4895, 21305, 46871, 234355, 379229, 1896145, 4171519, 20857595]

約数ペア:

[(1, 20857595), (5, 4171519), (11, 1896145), (55, 379229), (89, 234355), (445, 46871), (979, 21305), (4261, 4895)]