16391815

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1$

素因数の和:327

約数の個数: 32

約数和(自身を含む): 22809600

約数和(自身を除く): 6417785

約数列:

[1, 5, 11, 29, 43, 55, 145, 215, 239, 319, 473, 1195, 1247, 1595, 2365, 2629, 6235, 6931, 10277, 13145, 13717, 34655, 51385, 68585, 76241, 113047, 298033, 381205, 565235, 1490165, 3278363, 16391815]

約数ペア:

[(1, 16391815), (5, 3278363), (11, 1490165), (29, 565235), (43, 381205), (55, 298033), (145, 113047), (215, 76241), (239, 68585), (319, 51385), (473, 34655), (1195, 13717), (1247, 13145), (1595, 10277), (2365, 6931), (2629, 6235)]