28309209

素因数分解:

$3^1\times {\mathrm{89}}^1\times {\mathrm{229}}^1\times {\mathrm{463}}^1$

素因数の和:784

約数の個数: 16

約数和(自身を含む): 38419200

約数和(自身を除く): 10109991

約数列:

[1, 3, 89, 229, 267, 463, 687, 1389, 20381, 41207, 61143, 106027, 123621, 318081, 9436403, 28309209]

約数ペア:

[(1, 28309209), (3, 9436403), (89, 318081), (229, 123621), (267, 106027), (463, 61143), (687, 41207), (1389, 20381)]