2858247

素因数分解:

$3^4\times 7^1\times {\mathrm{71}}^2$

素因数の和:161

約数の個数: 30

約数和(自身を含む): 4949384

約数和(自身を除く): 2091137

約数列:

[1, 3, 7, 9, 21, 27, 63, 71, 81, 189, 213, 497, 567, 639, 1491, 1917, 4473, 5041, 5751, 13419, 15123, 35287, 40257, 45369, 105861, 136107, 317583, 408321, 952749, 2858247]

約数ペア:

[(1, 2858247), (3, 952749), (7, 408321), (9, 317583), (21, 136107), (27, 105861), (63, 45369), (71, 40257), (81, 35287), (189, 15123), (213, 13419), (497, 5751), (567, 5041), (639, 4473), (1491, 1917)]