20749155

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{2707}}^1$

素因数の和:2795

約数の個数: 32

約数和(自身を含む): 38475264

約数和(自身を除く): 17726109

約数列:

[1, 3, 5, 7, 15, 21, 35, 73, 105, 219, 365, 511, 1095, 1533, 2555, 2707, 7665, 8121, 13535, 18949, 40605, 56847, 94745, 197611, 284235, 592833, 988055, 1383277, 2964165, 4149831, 6916385, 20749155]

約数ペア:

[(1, 20749155), (3, 6916385), (5, 4149831), (7, 2964165), (15, 1383277), (21, 988055), (35, 592833), (73, 284235), (105, 197611), (219, 94745), (365, 56847), (511, 40605), (1095, 18949), (1533, 13535), (2555, 8121), (2707, 7665)]