21164439

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{18043}}^1$

素因数の和:18086

約数の個数: 16

約数和(自身を含む): 31180032

約数和(自身を除く): 10015593

約数列:

[1, 3, 17, 23, 51, 69, 391, 1173, 18043, 54129, 306731, 414989, 920193, 1244967, 7054813, 21164439]

約数ペア:

[(1, 21164439), (3, 7054813), (17, 1244967), (23, 920193), (51, 414989), (69, 306731), (391, 54129), (1173, 18043)]