21002465

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{5231}}^1$

素因数の和:5320

約数の個数: 16

約数和(自身を含む): 27876096

約数和(自身を除く): 6873631

約数列:

[1, 5, 11, 55, 73, 365, 803, 4015, 5231, 26155, 57541, 287705, 381863, 1909315, 4200493, 21002465]

約数ペア:

[(1, 21002465), (5, 4200493), (11, 1909315), (55, 381863), (73, 287705), (365, 57541), (803, 26155), (4015, 5231)]