218319409

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{1021}}^1\times {\mathrm{2777}}^1$

素因数の和:3816

約数の個数: 16

約数和(自身を含む): 272555136

約数和(自身を除く): 54235727

約数列:

[1, 7, 11, 77, 1021, 2777, 7147, 11231, 19439, 30547, 78617, 213829, 2835317, 19847219, 31188487, 218319409]

約数ペア:

[(1, 218319409), (7, 31188487), (11, 19847219), (77, 2835317), (1021, 213829), (2777, 78617), (7147, 30547), (11231, 19439)]