18864807

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{21031}}^1$

素因数の和:21070

約数の個数: 16

約数和(自身を含む): 28267008

約数和(自身を除く): 9402201

約数列:

[1, 3, 13, 23, 39, 69, 299, 897, 21031, 63093, 273403, 483713, 820209, 1451139, 6288269, 18864807]

約数ペア:

[(1, 18864807), (3, 6288269), (13, 1451139), (23, 820209), (39, 483713), (69, 273403), (299, 63093), (897, 21031)]