20761455

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{9679}}^1$

素因数の和:9711

約数の個数: 32

約数和(自身を含む): 39029760

約数和(自身を除く): 18268305

約数列:

[1, 3, 5, 11, 13, 15, 33, 39, 55, 65, 143, 165, 195, 429, 715, 2145, 9679, 29037, 48395, 106469, 125827, 145185, 319407, 377481, 532345, 629135, 1384097, 1597035, 1887405, 4152291, 6920485, 20761455]

約数ペア:

[(1, 20761455), (3, 6920485), (5, 4152291), (11, 1887405), (13, 1597035), (15, 1384097), (33, 629135), (39, 532345), (55, 377481), (65, 319407), (143, 145185), (165, 125827), (195, 106469), (429, 48395), (715, 29037), (2145, 9679)]