28875771

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{5021}}^1$

素因数の和:5104

約数の個数: 20

約数和(自身を含む): 43751664

約数和(自身を除く): 14875893

約数列:

[1, 3, 9, 27, 71, 81, 213, 639, 1917, 5021, 5751, 15063, 45189, 135567, 356491, 406701, 1069473, 3208419, 9625257, 28875771]

約数ペア:

[(1, 28875771), (3, 9625257), (9, 3208419), (27, 1069473), (71, 406701), (81, 356491), (213, 135567), (639, 45189), (1917, 15063), (5021, 5751)]