21249237

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{1249}}^1$

素因数の和:1412

約数の個数: 16

約数和(自身を含む): 29160000

約数和(自身を除く): 7910763

約数列:

[1, 3, 53, 107, 159, 321, 1249, 3747, 5671, 17013, 66197, 133643, 198591, 400929, 7083079, 21249237]

約数ペア:

[(1, 21249237), (3, 7083079), (53, 400929), (107, 198591), (159, 133643), (321, 66197), (1249, 17013), (3747, 5671)]