20206947

素因数分解:

$3^1\times {\mathrm{31}}^2\times {\mathrm{43}}^1\times {\mathrm{163}}^1$

素因数の和:271

約数の個数: 24

約数和(自身を含む): 28661952

約数和(自身を除く): 8455005

約数列:

[1, 3, 31, 43, 93, 129, 163, 489, 961, 1333, 2883, 3999, 5053, 7009, 15159, 21027, 41323, 123969, 156643, 217279, 469929, 651837, 6735649, 20206947]

約数ペア:

[(1, 20206947), (3, 6735649), (31, 651837), (43, 469929), (93, 217279), (129, 156643), (163, 123969), (489, 41323), (961, 21027), (1333, 15159), (2883, 7009), (3999, 5053)]