2211391

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1279}}^1$

素因数の和:1318

約数の個数: 16

約数和(自身を含む): 2867200

約数和(自身を除く): 655809

約数列:

[1, 7, 13, 19, 91, 133, 247, 1279, 1729, 8953, 16627, 24301, 116389, 170107, 315913, 2211391]

約数ペア:

[(1, 2211391), (7, 315913), (13, 170107), (19, 116389), (91, 24301), (133, 16627), (247, 8953), (1279, 1729)]