20661171

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{41}}^2\times {\mathrm{241}}^1$

素因数の和:343

約数の個数: 24

約数和(自身を含む): 30021552

約数和(自身を除く): 9360381

約数列:

[1, 3, 17, 41, 51, 123, 241, 697, 723, 1681, 2091, 4097, 5043, 9881, 12291, 28577, 29643, 85731, 167977, 405121, 503931, 1215363, 6887057, 20661171]

約数ペア:

[(1, 20661171), (3, 6887057), (17, 1215363), (41, 503931), (51, 405121), (123, 167977), (241, 85731), (697, 29643), (723, 28577), (1681, 12291), (2091, 9881), (4097, 5043)]