20311785

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{34721}}^1$

素因数の和:34745

約数の個数: 24

約数和(自身を含む): 37916424

約数和(自身を除く): 17604639

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 34721, 104163, 173605, 312489, 451373, 520815, 1354119, 1562445, 2256865, 4062357, 6770595, 20311785]

約数ペア:

[(1, 20311785), (3, 6770595), (5, 4062357), (9, 2256865), (13, 1562445), (15, 1354119), (39, 520815), (45, 451373), (65, 312489), (117, 173605), (195, 104163), (585, 34721)]