20685756

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{997}}^1$

素因数の和:1043

約数の個数: 96

約数和(自身を含む): 62594560

約数和(自身を除く): 41908804

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 19, 21, 26, 28, 38, 39, 42, 52, 57, 76, 78, 84, 91, 114, 133, 156, 182, 228, 247, 266, 273, 364, 399, 494, 532, 546, 741, 798, 988, 997, 1092, 1482, 1596, 1729, 1994, 2964, 2991, 3458, 3988, 5187, 5982, 6916, 6979, 10374, 11964, 12961, 13958, 18943, 20748, 20937, 25922, 27916, 37886, 38883, 41874, 51844, 56829, 75772, 77766, 83748, 90727, 113658, 132601, 155532, 181454, 227316, 246259, 265202, 272181, 362908, 397803, 492518, 530404, 544362, 738777, 795606, 985036, 1088724, 1477554, 1591212, 1723813, 2955108, 3447626, 5171439, 6895252, 10342878, 20685756]

約数ペア:

[(1, 20685756), (2, 10342878), (3, 6895252), (4, 5171439), (6, 3447626), (7, 2955108), (12, 1723813), (13, 1591212), (14, 1477554), (19, 1088724), (21, 985036), (26, 795606), (28, 738777), (38, 544362), (39, 530404), (42, 492518), (52, 397803), (57, 362908), (76, 272181), (78, 265202), (84, 246259), (91, 227316), (114, 181454), (133, 155532), (156, 132601), (182, 113658), (228, 90727), (247, 83748), (266, 77766), (273, 75772), (364, 56829), (399, 51844), (494, 41874), (532, 38883), (546, 37886), (741, 27916), (798, 25922), (988, 20937), (997, 20748), (1092, 18943), (1482, 13958), (1596, 12961), (1729, 11964), (1994, 10374), (2964, 6979), (2991, 6916), (3458, 5982), (3988, 5187)]