18994794

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1831}}^1$

素因数の和:1875

約数の個数: 64

約数和(自身を含む): 49244160

約数和(自身を除く): 30249366

約数列:

[1, 2, 3, 6, 7, 13, 14, 19, 21, 26, 38, 39, 42, 57, 78, 91, 114, 133, 182, 247, 266, 273, 399, 494, 546, 741, 798, 1482, 1729, 1831, 3458, 3662, 5187, 5493, 10374, 10986, 12817, 23803, 25634, 34789, 38451, 47606, 69578, 71409, 76902, 104367, 142818, 166621, 208734, 243523, 333242, 452257, 487046, 499863, 730569, 904514, 999726, 1356771, 1461138, 2713542, 3165799, 6331598, 9497397, 18994794]

約数ペア:

[(1, 18994794), (2, 9497397), (3, 6331598), (6, 3165799), (7, 2713542), (13, 1461138), (14, 1356771), (19, 999726), (21, 904514), (26, 730569), (38, 499863), (39, 487046), (42, 452257), (57, 333242), (78, 243523), (91, 208734), (114, 166621), (133, 142818), (182, 104367), (247, 76902), (266, 71409), (273, 69578), (399, 47606), (494, 38451), (546, 34789), (741, 25634), (798, 23803), (1482, 12817), (1729, 10986), (1831, 10374), (3458, 5493), (3662, 5187)]