210947289

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{313}}^1\times {\mathrm{479}}^1$

素因数の和:869

約数の個数: 32

約数和(自身を含む): 327966720

約数和(自身を除く): 117019431

約数列:

[1, 3, 7, 21, 67, 201, 313, 469, 479, 939, 1407, 1437, 2191, 3353, 6573, 10059, 20971, 32093, 62913, 96279, 146797, 149927, 224651, 440391, 449781, 673953, 1049489, 3148467, 10045109, 30135327, 70315763, 210947289]

約数ペア:

[(1, 210947289), (3, 70315763), (7, 30135327), (21, 10045109), (67, 3148467), (201, 1049489), (313, 673953), (469, 449781), (479, 440391), (939, 224651), (1407, 149927), (1437, 146797), (2191, 96279), (3353, 62913), (6573, 32093), (10059, 20971)]