21528897

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{24001}}^1$

素因数の和:24040

約数の個数: 16

約数和(自身を含む): 32258688

約数和(自身を除く): 10729791

約数列:

[1, 3, 13, 23, 39, 69, 299, 897, 24001, 72003, 312013, 552023, 936039, 1656069, 7176299, 21528897]

約数ペア:

[(1, 21528897), (3, 7176299), (13, 1656069), (23, 936039), (39, 552023), (69, 312013), (299, 72003), (897, 24001)]