21231255

素因数分解:

$3^1\times 5^1\times {\mathrm{613}}^1\times {\mathrm{2309}}^1$

素因数の和:2930

約数の個数: 16

約数和(自身を含む): 34040160

約数和(自身を除く): 12808905

約数列:

[1, 3, 5, 15, 613, 1839, 2309, 3065, 6927, 9195, 11545, 34635, 1415417, 4246251, 7077085, 21231255]

約数ペア:

[(1, 21231255), (3, 7077085), (5, 4246251), (15, 1415417), (613, 34635), (1839, 11545), (2309, 9195), (3065, 6927)]