21952143

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{613}}^1$

素因数の和:815

約数の個数: 24

約数和(自身を含む): 33332832

約数和(自身を除く): 11380689

約数列:

[1, 3, 9, 23, 69, 173, 207, 519, 613, 1557, 1839, 3979, 5517, 11937, 14099, 35811, 42297, 106049, 126891, 318147, 954441, 2439127, 7317381, 21952143]

約数ペア:

[(1, 21952143), (3, 7317381), (9, 2439127), (23, 954441), (69, 318147), (173, 126891), (207, 106049), (519, 42297), (613, 35811), (1557, 14099), (1839, 11937), (3979, 5517)]