28104531

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{7919}}^1$

素因数の和:7955

約数の個数: 24

約数和(自身を含む): 46379520

約数和(自身を除く): 18274989

約数列:

[1, 3, 7, 13, 21, 39, 91, 169, 273, 507, 1183, 3549, 7919, 23757, 55433, 102947, 166299, 308841, 720629, 1338311, 2161887, 4014933, 9368177, 28104531]

約数ペア:

[(1, 28104531), (3, 9368177), (7, 4014933), (13, 2161887), (21, 1338311), (39, 720629), (91, 308841), (169, 166299), (273, 102947), (507, 55433), (1183, 23757), (3549, 7919)]