18837897

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{21001}}^1$

素因数の和:21040

約数の個数: 16

約数和(自身を含む): 28226688

約数和(自身を除く): 9388791

約数列:

[1, 3, 13, 23, 39, 69, 299, 897, 21001, 63003, 273013, 483023, 819039, 1449069, 6279299, 18837897]

約数ペア:

[(1, 18837897), (3, 6279299), (13, 1449069), (23, 819039), (39, 483023), (69, 273013), (299, 63003), (897, 21001)]