18699681

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{479}}^1$

素因数の和:526

約数の個数: 48

約数和(自身を含む): 33730560

約数和(自身を除く): 15030879

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 77, 91, 143, 169, 231, 273, 429, 479, 507, 1001, 1183, 1437, 1859, 3003, 3353, 3549, 5269, 5577, 6227, 10059, 13013, 15807, 18681, 36883, 39039, 43589, 68497, 80951, 110649, 130767, 205491, 242853, 479479, 566657, 890461, 1438437, 1699971, 2671383, 6233227, 18699681]

約数ペア:

[(1, 18699681), (3, 6233227), (7, 2671383), (11, 1699971), (13, 1438437), (21, 890461), (33, 566657), (39, 479479), (77, 242853), (91, 205491), (143, 130767), (169, 110649), (231, 80951), (273, 68497), (429, 43589), (479, 39039), (507, 36883), (1001, 18681), (1183, 15807), (1437, 13013), (1859, 10059), (3003, 6227), (3353, 5577), (3549, 5269)]