21296037

素因数分解:

$3^1\times 7^2\times {\mathrm{277}}^1\times {\mathrm{523}}^1$

素因数の和:817

約数の個数: 24

約数和(自身を含む): 33213216

約数和(自身を除く): 11917179

約数列:

[1, 3, 7, 21, 49, 147, 277, 523, 831, 1569, 1939, 3661, 5817, 10983, 13573, 25627, 40719, 76881, 144871, 434613, 1014097, 3042291, 7098679, 21296037]

約数ペア:

[(1, 21296037), (3, 7098679), (7, 3042291), (21, 1014097), (49, 434613), (147, 144871), (277, 76881), (523, 40719), (831, 25627), (1569, 13573), (1939, 10983), (3661, 5817)]