20758785

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{641}}^1$

素因数の和:793

約数の個数: 32

約数和(自身を含む): 35500032

約数和(自身を除く): 14741247

約数列:

[1, 3, 5, 15, 17, 51, 85, 127, 255, 381, 635, 641, 1905, 1923, 2159, 3205, 6477, 9615, 10795, 10897, 32385, 32691, 54485, 81407, 163455, 244221, 407035, 1221105, 1383919, 4151757, 6919595, 20758785]

約数ペア:

[(1, 20758785), (3, 6919595), (5, 4151757), (15, 1383919), (17, 1221105), (51, 407035), (85, 244221), (127, 163455), (255, 81407), (381, 54485), (635, 32691), (641, 32385), (1905, 10897), (1923, 10795), (2159, 9615), (3205, 6477)]