20456919

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{11197}}^1$

素因数の和:11239

約数の個数: 24

約数和(自身を含む): 34937760

約数和(自身を除く): 14480841

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 203, 261, 609, 1827, 11197, 33591, 78379, 100773, 235137, 324713, 705411, 974139, 2272991, 2922417, 6818973, 20456919]

約数ペア:

[(1, 20456919), (3, 6818973), (7, 2922417), (9, 2272991), (21, 974139), (29, 705411), (63, 324713), (87, 235137), (203, 100773), (261, 78379), (609, 33591), (1827, 11197)]