20724309

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{277}}^1$

素因数の和:466

約数の個数: 32

約数和(自身を含む): 32826240

約数和(自身を除く): 12101931

約数列:

[1, 3, 9, 17, 27, 51, 153, 163, 277, 459, 489, 831, 1467, 2493, 2771, 4401, 4709, 7479, 8313, 14127, 24939, 42381, 45151, 74817, 127143, 135453, 406359, 767567, 1219077, 2302701, 6908103, 20724309]

約数ペア:

[(1, 20724309), (3, 6908103), (9, 2302701), (17, 1219077), (27, 767567), (51, 406359), (153, 135453), (163, 127143), (277, 74817), (459, 45151), (489, 42381), (831, 24939), (1467, 14127), (2493, 8313), (2771, 7479), (4401, 4709)]