20818473

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{23209}}^1$

素因数の和:23248

約数の個数: 16

約数和(自身を含む): 31194240

約数和(自身を除く): 10375767

約数列:

[1, 3, 13, 23, 39, 69, 299, 897, 23209, 69627, 301717, 533807, 905151, 1601421, 6939491, 20818473]

約数ペア:

[(1, 20818473), (3, 6939491), (13, 1601421), (23, 905151), (39, 533807), (69, 301717), (299, 69627), (897, 23209)]