28492191

素因数分解:

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

素因数の和:1876

約数の個数: 48

約数和(自身を含む): 53347840

約数和(自身を除く): 24855649

約数列:

[1, 3, 7, 9, 13, 19, 21, 39, 57, 63, 91, 117, 133, 171, 247, 273, 399, 741, 819, 1197, 1729, 1831, 2223, 5187, 5493, 12817, 15561, 16479, 23803, 34789, 38451, 71409, 104367, 115353, 166621, 214227, 243523, 313101, 452257, 499863, 730569, 1356771, 1499589, 2191707, 3165799, 4070313, 9497397, 28492191]

約数ペア:

[(1, 28492191), (3, 9497397), (7, 4070313), (9, 3165799), (13, 2191707), (19, 1499589), (21, 1356771), (39, 730569), (57, 499863), (63, 452257), (91, 313101), (117, 243523), (133, 214227), (171, 166621), (247, 115353), (273, 104367), (399, 71409), (741, 38451), (819, 34789), (1197, 23803), (1729, 16479), (1831, 15561), (2223, 12817), (5187, 5493)]