20431178

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{149}}^1$

素因数の和:314

約数の個数: 32

約数和(自身を含む): 33858000

約数和(自身を除く): 13426822

約数列:

[1, 2, 17, 34, 37, 74, 109, 149, 218, 298, 629, 1258, 1853, 2533, 3706, 4033, 5066, 5513, 8066, 11026, 16241, 32482, 68561, 93721, 137122, 187442, 276097, 552194, 600917, 1201834, 10215589, 20431178]

約数ペア:

[(1, 20431178), (2, 10215589), (17, 1201834), (34, 600917), (37, 552194), (74, 276097), (109, 187442), (149, 137122), (218, 93721), (298, 68561), (629, 32482), (1258, 16241), (1853, 11026), (2533, 8066), (3706, 5513), (4033, 5066)]