20051388

素因数分解:

$2^2\times 3^5\times 7^2\times {\mathrm{421}}^1$

素因数の和:454

約数の個数: 108

約数和(自身を含む): 61289592

約数和(自身を除く): 41238204

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 49, 54, 63, 81, 84, 98, 108, 126, 147, 162, 189, 196, 243, 252, 294, 324, 378, 421, 441, 486, 567, 588, 756, 842, 882, 972, 1134, 1263, 1323, 1684, 1701, 1764, 2268, 2526, 2646, 2947, 3402, 3789, 3969, 5052, 5292, 5894, 6804, 7578, 7938, 8841, 11367, 11788, 11907, 15156, 15876, 17682, 20629, 22734, 23814, 26523, 34101, 35364, 41258, 45468, 47628, 53046, 61887, 68202, 79569, 82516, 102303, 106092, 123774, 136404, 159138, 185661, 204606, 238707, 247548, 318276, 371322, 409212, 477414, 556983, 716121, 742644, 954828, 1113966, 1432242, 1670949, 2227932, 2864484, 3341898, 5012847, 6683796, 10025694, 20051388]

約数ペア:

[(1, 20051388), (2, 10025694), (3, 6683796), (4, 5012847), (6, 3341898), (7, 2864484), (9, 2227932), (12, 1670949), (14, 1432242), (18, 1113966), (21, 954828), (27, 742644), (28, 716121), (36, 556983), (42, 477414), (49, 409212), (54, 371322), (63, 318276), (81, 247548), (84, 238707), (98, 204606), (108, 185661), (126, 159138), (147, 136404), (162, 123774), (189, 106092), (196, 102303), (243, 82516), (252, 79569), (294, 68202), (324, 61887), (378, 53046), (421, 47628), (441, 45468), (486, 41258), (567, 35364), (588, 34101), (756, 26523), (842, 23814), (882, 22734), (972, 20629), (1134, 17682), (1263, 15876), (1323, 15156), (1684, 11907), (1701, 11788), (1764, 11367), (2268, 8841), (2526, 7938), (2646, 7578), (2947, 6804), (3402, 5894), (3789, 5292), (3969, 5052)]