218691351

素因数分解:

$3^2\times {\mathrm{103}}^1\times {\mathrm{269}}^1\times {\mathrm{877}}^1$

素因数の和:1255

約数の個数: 24

約数和(自身を含む): 320505120

約数和(自身を除く): 101813769

約数列:

[1, 3, 9, 103, 269, 309, 807, 877, 927, 2421, 2631, 7893, 27707, 83121, 90331, 235913, 249363, 270993, 707739, 812979, 2123217, 24299039, 72897117, 218691351]

約数ペア:

[(1, 218691351), (3, 72897117), (9, 24299039), (103, 2123217), (269, 812979), (309, 707739), (807, 270993), (877, 249363), (927, 235913), (2421, 90331), (2631, 83121), (7893, 27707)]