18723909

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{3049}}^1$

素因数の和:3164

約数の個数: 16

約数和(自身を含む): 26352000

約数和(自身を除く): 7628091

約数列:

[1, 3, 23, 69, 89, 267, 2047, 3049, 6141, 9147, 70127, 210381, 271361, 814083, 6241303, 18723909]

約数ペア:

[(1, 18723909), (3, 6241303), (23, 814083), (69, 271361), (89, 210381), (267, 70127), (2047, 9147), (3049, 6141)]