28438179

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{409}}^1$

素因数の和:480

約数の個数: 48

約数和(自身を含む): 49357440

約数和(自身を除く): 20919261

約数列:

[1, 3, 7, 11, 21, 33, 43, 49, 77, 129, 147, 231, 301, 409, 473, 539, 903, 1227, 1419, 1617, 2107, 2863, 3311, 4499, 6321, 8589, 9933, 13497, 17587, 20041, 23177, 31493, 52761, 60123, 69531, 94479, 123109, 193457, 220451, 369327, 580371, 661353, 861763, 1354199, 2585289, 4062597, 9479393, 28438179]

約数ペア:

[(1, 28438179), (3, 9479393), (7, 4062597), (11, 2585289), (21, 1354199), (33, 861763), (43, 661353), (49, 580371), (77, 369327), (129, 220451), (147, 193457), (231, 123109), (301, 94479), (409, 69531), (473, 60123), (539, 52761), (903, 31493), (1227, 23177), (1419, 20041), (1617, 17587), (2107, 13497), (2863, 9933), (3311, 8589), (4499, 6321)]