19700397

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{5009}}^1$

素因数の和:5057

約数の個数: 24

約数和(自身を含む): 31262400

約数和(自身を除く): 11562003

約数列:

[1, 3, 9, 19, 23, 57, 69, 171, 207, 437, 1311, 3933, 5009, 15027, 45081, 95171, 115207, 285513, 345621, 856539, 1036863, 2188933, 6566799, 19700397]

約数ペア:

[(1, 19700397), (3, 6566799), (9, 2188933), (19, 1036863), (23, 856539), (57, 345621), (69, 285513), (171, 115207), (207, 95171), (437, 45081), (1311, 15027), (3933, 5009)]