20966904

素因数分解:

$2^3\times 3^3\times 7^3\times {\mathrm{283}}^1$

素因数の和:319

約数の個数: 128

約数和(自身を含む): 68160000

約数和(自身を除く): 47193096

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 49, 54, 56, 63, 72, 84, 98, 108, 126, 147, 168, 189, 196, 216, 252, 283, 294, 343, 378, 392, 441, 504, 566, 588, 686, 756, 849, 882, 1029, 1132, 1176, 1323, 1372, 1512, 1698, 1764, 1981, 2058, 2264, 2547, 2646, 2744, 3087, 3396, 3528, 3962, 4116, 5094, 5292, 5943, 6174, 6792, 7641, 7924, 8232, 9261, 10188, 10584, 11886, 12348, 13867, 15282, 15848, 17829, 18522, 20376, 23772, 24696, 27734, 30564, 35658, 37044, 41601, 47544, 53487, 55468, 61128, 71316, 74088, 83202, 97069, 106974, 110936, 124803, 142632, 166404, 194138, 213948, 249606, 291207, 332808, 374409, 388276, 427896, 499212, 582414, 748818, 776552, 873621, 998424, 1164828, 1497636, 1747242, 2329656, 2620863, 2995272, 3494484, 5241726, 6988968, 10483452, 20966904]

約数ペア:

[(1, 20966904), (2, 10483452), (3, 6988968), (4, 5241726), (6, 3494484), (7, 2995272), (8, 2620863), (9, 2329656), (12, 1747242), (14, 1497636), (18, 1164828), (21, 998424), (24, 873621), (27, 776552), (28, 748818), (36, 582414), (42, 499212), (49, 427896), (54, 388276), (56, 374409), (63, 332808), (72, 291207), (84, 249606), (98, 213948), (108, 194138), (126, 166404), (147, 142632), (168, 124803), (189, 110936), (196, 106974), (216, 97069), (252, 83202), (283, 74088), (294, 71316), (343, 61128), (378, 55468), (392, 53487), (441, 47544), (504, 41601), (566, 37044), (588, 35658), (686, 30564), (756, 27734), (849, 24696), (882, 23772), (1029, 20376), (1132, 18522), (1176, 17829), (1323, 15848), (1372, 15282), (1512, 13867), (1698, 12348), (1764, 11886), (1981, 10584), (2058, 10188), (2264, 9261), (2547, 8232), (2646, 7924), (2744, 7641), (3087, 6792), (3396, 6174), (3528, 5943), (3962, 5292), (4116, 5094)]