21339625

素因数分解:

$5^3\times {\mathrm{31}}^1\times {\mathrm{5507}}^1$

素因数の和:5553

約数の個数: 16

約数和(自身を含む): 27495936

約数和(自身を除く): 6156311

約数列:

[1, 5, 25, 31, 125, 155, 775, 3875, 5507, 27535, 137675, 170717, 688375, 853585, 4267925, 21339625]

約数ペア:

[(1, 21339625), (5, 4267925), (25, 853585), (31, 688375), (125, 170717), (155, 137675), (775, 27535), (3875, 5507)]