19812285

素因数分解:

$3^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{1109}}^1$

素因数の和:1517

約数の個数: 24

約数和(自身を含む): 34458840

約数和(自身を除く): 14646555

約数列:

[1, 3, 5, 9, 15, 45, 397, 1109, 1191, 1985, 3327, 3573, 5545, 5955, 9981, 16635, 17865, 49905, 440273, 1320819, 2201365, 3962457, 6604095, 19812285]

約数ペア:

[(1, 19812285), (3, 6604095), (5, 3962457), (9, 2201365), (15, 1320819), (45, 440273), (397, 49905), (1109, 17865), (1191, 16635), (1985, 9981), (3327, 5955), (3573, 5545)]