21249645

素因数分解:

$3^1\times 5^1\times {\mathrm{613}}^1\times {\mathrm{2311}}^1$

素因数の和:2932

約数の個数: 16

約数和(自身を含む): 34069632

約数和(自身を除く): 12819987

約数列:

[1, 3, 5, 15, 613, 1839, 2311, 3065, 6933, 9195, 11555, 34665, 1416643, 4249929, 7083215, 21249645]

約数ペア:

[(1, 21249645), (3, 7083215), (5, 4249929), (15, 1416643), (613, 34665), (1839, 11555), (2311, 9195), (3065, 6933)]