21727013

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{14851}}^1$

素因数の和:14888

約数の個数: 16

約数和(自身を含む): 28515840

約数和(自身を除く): 6788827

約数列:

[1, 7, 11, 19, 77, 133, 209, 1463, 14851, 103957, 163361, 282169, 1143527, 1975183, 3103859, 21727013]

約数ペア:

[(1, 21727013), (7, 3103859), (11, 1975183), (19, 1143527), (77, 282169), (133, 163361), (209, 103957), (1463, 14851)]