20807766

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{59}}^1\times {\mathrm{311}}^1$

素因数の和:391

約数の個数: 80

約数和(自身を含む): 54362880

約数和(自身を除く): 33555114

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 59, 63, 81, 118, 126, 162, 177, 189, 311, 354, 378, 413, 531, 567, 622, 826, 933, 1062, 1134, 1239, 1593, 1866, 2177, 2478, 2799, 3186, 3717, 4354, 4779, 5598, 6531, 7434, 8397, 9558, 11151, 13062, 16794, 18349, 19593, 22302, 25191, 33453, 36698, 39186, 50382, 55047, 58779, 66906, 110094, 117558, 128443, 165141, 176337, 256886, 330282, 352674, 385329, 495423, 770658, 990846, 1155987, 1486269, 2311974, 2972538, 3467961, 6935922, 10403883, 20807766]

約数ペア:

[(1, 20807766), (2, 10403883), (3, 6935922), (6, 3467961), (7, 2972538), (9, 2311974), (14, 1486269), (18, 1155987), (21, 990846), (27, 770658), (42, 495423), (54, 385329), (59, 352674), (63, 330282), (81, 256886), (118, 176337), (126, 165141), (162, 128443), (177, 117558), (189, 110094), (311, 66906), (354, 58779), (378, 55047), (413, 50382), (531, 39186), (567, 36698), (622, 33453), (826, 25191), (933, 22302), (1062, 19593), (1134, 18349), (1239, 16794), (1593, 13062), (1866, 11151), (2177, 9558), (2478, 8397), (2799, 7434), (3186, 6531), (3717, 5598), (4354, 4779)]