4005256221

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{7807517}}^1$

素因数の和:7807545

約数の個数: 16

約数和(自身を含む): 6246014400

約数和(自身を除く): 2240758179

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 7807517, 23422551, 70267653, 148342823, 210802959, 445028469, 1335085407, 4005256221]

約数ペア:

[(1, 4005256221), (3, 1335085407), (9, 445028469), (19, 210802959), (27, 148342823), (57, 70267653), (171, 23422551), (513, 7807517)]