21716979

素因数分解:

$3^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1\times {\mathrm{499}}^1$

素因数の和:754

約数の個数: 16

約数和(自身を含む): 29520000

約数和(自身を除く): 7803021

約数列:

[1, 3, 89, 163, 267, 489, 499, 1497, 14507, 43521, 44411, 81337, 133233, 244011, 7238993, 21716979]

約数ペア:

[(1, 21716979), (3, 7238993), (89, 244011), (163, 133233), (267, 81337), (489, 44411), (499, 43521), (1497, 14507)]