20688057

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{1171}}^1$

素因数の和:1341

約数の個数: 24

約数和(自身を含む): 32422208

約数和(自身を除く): 11734151

約数列:

[1, 3, 9, 13, 39, 117, 151, 453, 1171, 1359, 1963, 3513, 5889, 10539, 15223, 17667, 45669, 137007, 176821, 530463, 1591389, 2298673, 6896019, 20688057]

約数ペア:

[(1, 20688057), (3, 6896019), (9, 2298673), (13, 1591389), (39, 530463), (117, 176821), (151, 137007), (453, 45669), (1171, 17667), (1359, 15223), (1963, 10539), (3513, 5889)]