19236721

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{2729}}^1$

素因数の和:2808

約数の個数: 16

約数和(自身を含む): 23587200

約数和(自身を除く): 4350479

約数列:

[1, 7, 19, 53, 133, 371, 1007, 2729, 7049, 19103, 51851, 144637, 362957, 1012459, 2748103, 19236721]

約数ペア:

[(1, 19236721), (7, 2748103), (19, 1012459), (53, 362957), (133, 144637), (371, 51851), (1007, 19103), (2729, 7049)]