21737287

素因数分解:

${\mathrm{11}}^2\times {\mathrm{13}}^2\times {\mathrm{1063}}^1$

素因数の和:1111

約数の個数: 18

約数和(自身を含む): 25896696

約数和(自身を除く): 4159409

約数列:

[1, 11, 13, 121, 143, 169, 1063, 1573, 1859, 11693, 13819, 20449, 128623, 152009, 179647, 1672099, 1976117, 21737287]

約数ペア:

[(1, 21737287), (11, 1976117), (13, 1672099), (121, 179647), (143, 152009), (169, 128623), (1063, 20449), (1573, 13819), (1859, 11693)]