81220559

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1\times {\mathrm{1427}}^1$

素因数の和:1654

約数の個数: 16

約数和(自身を含む): 95413248

約数和(自身を除く): 14192689

約数列:

[1, 7, 47, 173, 329, 1211, 1427, 8131, 9989, 56917, 67069, 246871, 469483, 1728097, 11602937, 81220559]

約数ペア:

[(1, 81220559), (7, 11602937), (47, 1728097), (173, 469483), (329, 246871), (1211, 67069), (1427, 56917), (8131, 9989)]