215685873

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{25253}}^1$

素因数の和:25345

約数の個数: 24

約数和(自身を含む): 340120872

約数和(自身を除く): 124434999

約数列:

[1, 3, 9, 13, 39, 73, 117, 219, 657, 949, 2847, 8541, 25253, 75759, 227277, 328289, 984867, 1843469, 2954601, 5530407, 16591221, 23965097, 71895291, 215685873]

約数ペア:

[(1, 215685873), (3, 71895291), (9, 23965097), (13, 16591221), (39, 5530407), (73, 2954601), (117, 1843469), (219, 984867), (657, 328289), (949, 227277), (2847, 75759), (8541, 25253)]