20180559

素因数分解:

$3^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{9907}}^1$

素因数の和:10014

約数の個数: 16

約数和(自身を含む): 31071488

約数和(自身を除く): 10890929

約数列:

[1, 3, 7, 21, 97, 291, 679, 2037, 9907, 29721, 69349, 208047, 960979, 2882937, 6726853, 20180559]

約数ペア:

[(1, 20180559), (3, 6726853), (7, 2882937), (21, 960979), (97, 208047), (291, 69349), (679, 29721), (2037, 9907)]