20491119

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{263}}^1\times {\mathrm{787}}^1$

素因数の和:1067

約数の個数: 24

約数和(自身を含む): 32452992

約数和(自身を除く): 11961873

約数列:

[1, 3, 9, 11, 33, 99, 263, 787, 789, 2361, 2367, 2893, 7083, 8657, 8679, 25971, 26037, 77913, 206981, 620943, 1862829, 2276791, 6830373, 20491119]

約数ペア:

[(1, 20491119), (3, 6830373), (9, 2276791), (11, 1862829), (33, 620943), (99, 206981), (263, 77913), (787, 26037), (789, 25971), (2361, 8679), (2367, 8657), (2893, 7083)]