20085003

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{10781}}^1$

素因数の和:10816

約数の個数: 20

約数和(自身を含む): 31310928

約数和(自身を除く): 11225925

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 10781, 32343, 97029, 247963, 291087, 743889, 873261, 2231667, 6695001, 20085003]

約数ペア:

[(1, 20085003), (3, 6695001), (9, 2231667), (23, 873261), (27, 743889), (69, 291087), (81, 247963), (207, 97029), (621, 32343), (1863, 10781)]