215984197

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{223}}^1\times {\mathrm{521}}^1$

素因数の和:781

約数の個数: 24

約数和(自身を含む): 256773888

約数和(自身を除く): 40789691

約数列:

[1, 11, 13, 143, 169, 223, 521, 1859, 2453, 2899, 5731, 6773, 31889, 37687, 74503, 88049, 116183, 414557, 968539, 1278013, 1510379, 16614169, 19634927, 215984197]

約数ペア:

[(1, 215984197), (11, 19634927), (13, 16614169), (143, 1510379), (169, 1278013), (223, 968539), (521, 414557), (1859, 116183), (2453, 88049), (2899, 74503), (5731, 37687), (6773, 31889)]