209400919

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{281}}^1\times {\mathrm{431}}^1$

素因数の和:751

約数の個数: 32

約数和(自身を含む): 272885760

約数和(自身を除く): 63484841

約数列:

[1, 7, 13, 19, 91, 133, 247, 281, 431, 1729, 1967, 3017, 3653, 5339, 5603, 8189, 25571, 37373, 39221, 57323, 69407, 106457, 121111, 485849, 745199, 847777, 1574443, 2301109, 11021101, 16107763, 29914417, 209400919]

約数ペア:

[(1, 209400919), (7, 29914417), (13, 16107763), (19, 11021101), (91, 2301109), (133, 1574443), (247, 847777), (281, 745199), (431, 485849), (1729, 121111), (1967, 106457), (3017, 69407), (3653, 57323), (5339, 39221), (5603, 37373), (8189, 25571)]