21193713

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1951}}^1$

素因数の和:2045

約数の個数: 24

約数和(自身を含む): 32887296

約数和(自身を除く): 11693583

約数列:

[1, 3, 9, 17, 51, 71, 153, 213, 639, 1207, 1951, 3621, 5853, 10863, 17559, 33167, 99501, 138521, 298503, 415563, 1246689, 2354857, 7064571, 21193713]

約数ペア:

[(1, 21193713), (3, 7064571), (9, 2354857), (17, 1246689), (51, 415563), (71, 298503), (153, 138521), (213, 99501), (639, 33167), (1207, 17559), (1951, 10863), (3621, 5853)]