20803257

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{743}}^1$

素因数の和:830

約数の個数: 32

約数和(自身を含む): 33212160

約数和(自身を除く): 12408903

約数列:

[1, 3, 9, 17, 27, 51, 61, 153, 183, 459, 549, 743, 1037, 1647, 2229, 3111, 6687, 9333, 12631, 20061, 27999, 37893, 45323, 113679, 135969, 341037, 407907, 770491, 1223721, 2311473, 6934419, 20803257]

約数ペア:

[(1, 20803257), (3, 6934419), (9, 2311473), (17, 1223721), (27, 770491), (51, 407907), (61, 341037), (153, 135969), (183, 113679), (459, 45323), (549, 37893), (743, 27999), (1037, 20061), (1647, 12631), (2229, 9333), (3111, 6687)]