20996343

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{1259}}^1$

素因数の和:1391

約数の個数: 24

約数和(自身を含む): 32432400

約数和(自身を除く): 11436057

約数列:

[1, 3, 9, 17, 51, 109, 153, 327, 981, 1259, 1853, 3777, 5559, 11331, 16677, 21403, 64209, 137231, 192627, 411693, 1235079, 2332927, 6998781, 20996343]

約数ペア:

[(1, 20996343), (3, 6998781), (9, 2332927), (17, 1235079), (51, 411693), (109, 192627), (153, 137231), (327, 64209), (981, 21403), (1259, 16677), (1853, 11331), (3777, 5559)]