20516903

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{1103}}^1$

素因数の和:1222

約数の個数: 16

約数和(自身を含む): 23846400

約数和(自身を除く): 3329497

約数列:

[1, 11, 19, 89, 209, 979, 1103, 1691, 12133, 18601, 20957, 98167, 230527, 1079837, 1865173, 20516903]

約数ペア:

[(1, 20516903), (11, 1865173), (19, 1079837), (89, 230527), (209, 98167), (979, 20957), (1103, 18601), (1691, 12133)]