20449719

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{39863}}^1$

素因数の和:39891

約数の個数: 16

約数和(自身を含む): 31891200

約数和(自身を除く): 11441481

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 39863, 119589, 358767, 757397, 1076301, 2272191, 6816573, 20449719]

約数ペア:

[(1, 20449719), (3, 6816573), (9, 2272191), (19, 1076301), (27, 757397), (57, 358767), (171, 119589), (513, 39863)]