20790877107

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{407257}}^1$

素因数の和:407308

約数の個数: 64

約数和(自身を含む): 39409542144

約数和(自身を除く): 18618665037

約数列:

[1, 3, 7, 11, 13, 17, 21, 33, 39, 51, 77, 91, 119, 143, 187, 221, 231, 273, 357, 429, 561, 663, 1001, 1309, 1547, 2431, 3003, 3927, 4641, 7293, 17017, 51051, 407257, 1221771, 2850799, 4479827, 5294341, 6923369, 8552397, 13439481, 15883023, 20770107, 31358789, 37060387, 48463583, 58237751, 76157059, 90003797, 94076367, 111181161, 145390749, 174713253, 228471177, 270011391, 407664257, 533099413, 630026579, 990041767, 1222992771, 1599298239, 1890079737, 2970125301, 6930292369, 20790877107]

約数ペア:

[(1, 20790877107), (3, 6930292369), (7, 2970125301), (11, 1890079737), (13, 1599298239), (17, 1222992771), (21, 990041767), (33, 630026579), (39, 533099413), (51, 407664257), (77, 270011391), (91, 228471177), (119, 174713253), (143, 145390749), (187, 111181161), (221, 94076367), (231, 90003797), (273, 76157059), (357, 58237751), (429, 48463583), (561, 37060387), (663, 31358789), (1001, 20770107), (1309, 15883023), (1547, 13439481), (2431, 8552397), (3003, 6923369), (3927, 5294341), (4641, 4479827), (7293, 2850799), (17017, 1221771), (51051, 407257)]