20517783

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^3\times {\mathrm{283}}^1$

素因数の和:336

約数の個数: 32

約数和(自身を含む): 32444160

約数和(自身を除く): 11926377

約数列:

[1, 3, 11, 13, 33, 39, 143, 169, 283, 429, 507, 849, 1859, 2197, 3113, 3679, 5577, 6591, 9339, 11037, 24167, 40469, 47827, 72501, 121407, 143481, 526097, 621751, 1578291, 1865253, 6839261, 20517783]

約数ペア:

[(1, 20517783), (3, 6839261), (11, 1865253), (13, 1578291), (33, 621751), (39, 526097), (143, 143481), (169, 121407), (283, 72501), (429, 47827), (507, 40469), (849, 24167), (1859, 11037), (2197, 9339), (3113, 6591), (3679, 5577)]