20383461

素因数分解:

$3^3\times 7^3\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:132

約数の個数: 64

約数和(自身を含む): 36864000

約数和(自身を除く): 16480539

約数列:

[1, 3, 7, 9, 21, 27, 31, 49, 63, 71, 93, 147, 189, 213, 217, 279, 343, 441, 497, 639, 651, 837, 1029, 1323, 1491, 1519, 1917, 1953, 2201, 3087, 3479, 4473, 4557, 5859, 6603, 9261, 10437, 10633, 13419, 13671, 15407, 19809, 24353, 31311, 31899, 41013, 46221, 59427, 73059, 93933, 95697, 107849, 138663, 219177, 287091, 323547, 415989, 657531, 754943, 970641, 2264829, 2911923, 6794487, 20383461]

約数ペア:

[(1, 20383461), (3, 6794487), (7, 2911923), (9, 2264829), (21, 970641), (27, 754943), (31, 657531), (49, 415989), (63, 323547), (71, 287091), (93, 219177), (147, 138663), (189, 107849), (213, 95697), (217, 93933), (279, 73059), (343, 59427), (441, 46221), (497, 41013), (639, 31899), (651, 31311), (837, 24353), (1029, 19809), (1323, 15407), (1491, 13671), (1519, 13419), (1917, 10633), (1953, 10437), (2201, 9261), (3087, 6603), (3479, 5859), (4473, 4557)]