18220658

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1$

素因数の和:266

約数の個数: 32

約数和(自身を含む): 29937600

約数和(自身を除く): 11716942

約数列:

[1, 2, 19, 38, 53, 83, 106, 109, 166, 218, 1007, 1577, 2014, 2071, 3154, 4142, 4399, 5777, 8798, 9047, 11554, 18094, 83581, 109763, 167162, 171893, 219526, 343786, 479491, 958982, 9110329, 18220658]

約数ペア:

[(1, 18220658), (2, 9110329), (19, 958982), (38, 479491), (53, 343786), (83, 219526), (106, 171893), (109, 167162), (166, 109763), (218, 83581), (1007, 18094), (1577, 11554), (2014, 9047), (2071, 8798), (3154, 5777), (4142, 4399)]