19649487

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{281}}^1$

素因数の和:471

約数の個数: 32

約数和(自身を含む): 31078656

約数和(自身を除く): 11429169

約数列:

[1, 3, 11, 13, 33, 39, 143, 163, 281, 429, 489, 843, 1793, 2119, 3091, 3653, 5379, 6357, 9273, 10959, 23309, 40183, 45803, 69927, 120549, 137409, 503833, 595439, 1511499, 1786317, 6549829, 19649487]

約数ペア:

[(1, 19649487), (3, 6549829), (11, 1786317), (13, 1511499), (33, 595439), (39, 503833), (143, 137409), (163, 120549), (281, 69927), (429, 45803), (489, 40183), (843, 23309), (1793, 10959), (2119, 9273), (3091, 6357), (3653, 5379)]