2128399

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1231}}^1$

素因数の和:1270

約数の個数: 16

約数和(自身を含む): 2759680

約数和(自身を除く): 631281

約数列:

[1, 7, 13, 19, 91, 133, 247, 1231, 1729, 8617, 16003, 23389, 112021, 163723, 304057, 2128399]

約数ペア:

[(1, 2128399), (7, 304057), (13, 163723), (19, 112021), (91, 23389), (133, 16003), (247, 8617), (1231, 1729)]