20565665

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{313}}^1\times {\mathrm{773}}^1$

素因数の和:1108

約数の個数: 16

約数和(自身を含む): 26247888

約数和(自身を除く): 5682223

約数列:

[1, 5, 17, 85, 313, 773, 1565, 3865, 5321, 13141, 26605, 65705, 241949, 1209745, 4113133, 20565665]

約数ペア:

[(1, 20565665), (5, 4113133), (17, 1209745), (85, 241949), (313, 65705), (773, 26605), (1565, 13141), (3865, 5321)]