20868185

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{8677}}^1$

素因数の和:8732

約数の個数: 16

約数和(自身を含む): 27700176

約数和(自身を除く): 6831991

約数列:

[1, 5, 13, 37, 65, 185, 481, 2405, 8677, 43385, 112801, 321049, 564005, 1605245, 4173637, 20868185]

約数ペア:

[(1, 20868185), (5, 4173637), (13, 1605245), (37, 564005), (65, 321049), (185, 112801), (481, 43385), (2405, 8677)]