19451159

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1$

素因数の和:219

約数の個数: 32

約数和(自身を含む): 25280640

約数和(自身を除く): 5829481

約数列:

[1, 7, 13, 37, 53, 91, 109, 259, 371, 481, 689, 763, 1417, 1961, 3367, 4033, 4823, 5777, 9919, 13727, 25493, 28231, 40439, 52429, 75101, 178451, 213749, 367003, 525707, 1496243, 2778737, 19451159]

約数ペア:

[(1, 19451159), (7, 2778737), (13, 1496243), (37, 525707), (53, 367003), (91, 213749), (109, 178451), (259, 75101), (371, 52429), (481, 40439), (689, 28231), (763, 25493), (1417, 13727), (1961, 9919), (3367, 5777), (4033, 4823)]