38191881

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{199}}^1$

素因数の和:278

約数の個数: 64

約数和(自身を含む): 68096000

約数和(自身を除く): 29904119

約数列:

[1, 3, 7, 13, 19, 21, 37, 39, 57, 91, 111, 133, 199, 247, 259, 273, 399, 481, 597, 703, 741, 777, 1393, 1443, 1729, 2109, 2587, 3367, 3781, 4179, 4921, 5187, 7363, 7761, 9139, 10101, 11343, 14763, 18109, 22089, 26467, 27417, 49153, 51541, 54327, 63973, 79401, 95719, 139897, 147459, 154623, 191919, 287157, 344071, 419691, 670033, 979279, 1032213, 1818661, 2010099, 2937837, 5455983, 12730627, 38191881]

約数ペア:

[(1, 38191881), (3, 12730627), (7, 5455983), (13, 2937837), (19, 2010099), (21, 1818661), (37, 1032213), (39, 979279), (57, 670033), (91, 419691), (111, 344071), (133, 287157), (199, 191919), (247, 154623), (259, 147459), (273, 139897), (399, 95719), (481, 79401), (597, 63973), (703, 54327), (741, 51541), (777, 49153), (1393, 27417), (1443, 26467), (1729, 22089), (2109, 18109), (2587, 14763), (3367, 11343), (3781, 10101), (4179, 9139), (4921, 7761), (5187, 7363)]