217856774

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{149}}^1\times {\mathrm{353}}^1$

素因数の和:632

約数の個数: 32

約数和(自身を含む): 350460000

約数和(自身を除く): 132603226

約数列:

[1, 2, 19, 38, 109, 149, 218, 298, 353, 706, 2071, 2831, 4142, 5662, 6707, 13414, 16241, 32482, 38477, 52597, 76954, 105194, 308579, 617158, 731063, 999343, 1462126, 1998686, 5733073, 11466146, 108928387, 217856774]

約数ペア:

[(1, 217856774), (2, 108928387), (19, 11466146), (38, 5733073), (109, 1998686), (149, 1462126), (218, 999343), (298, 731063), (353, 617158), (706, 308579), (2071, 105194), (2831, 76954), (4142, 52597), (5662, 38477), (6707, 32482), (13414, 16241)]