19813086

素因数分解:

$2^1\times 3^4\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1$

素因数の和:231

約数の個数: 80

約数和(自身を含む): 48177360

約数和(自身を除く): 28364274

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 41, 54, 57, 81, 82, 114, 123, 157, 162, 171, 246, 314, 342, 369, 471, 513, 738, 779, 942, 1026, 1107, 1413, 1539, 1558, 2214, 2337, 2826, 2983, 3078, 3321, 4239, 4674, 5966, 6437, 6642, 7011, 8478, 8949, 12717, 12874, 14022, 17898, 19311, 21033, 25434, 26847, 38622, 42066, 53694, 57933, 63099, 80541, 115866, 122303, 126198, 161082, 173799, 241623, 244606, 347598, 366909, 483246, 521397, 733818, 1042794, 1100727, 2201454, 3302181, 6604362, 9906543, 19813086]

約数ペア:

[(1, 19813086), (2, 9906543), (3, 6604362), (6, 3302181), (9, 2201454), (18, 1100727), (19, 1042794), (27, 733818), (38, 521397), (41, 483246), (54, 366909), (57, 347598), (81, 244606), (82, 241623), (114, 173799), (123, 161082), (157, 126198), (162, 122303), (171, 115866), (246, 80541), (314, 63099), (342, 57933), (369, 53694), (471, 42066), (513, 38622), (738, 26847), (779, 25434), (942, 21033), (1026, 19311), (1107, 17898), (1413, 14022), (1539, 12874), (1558, 12717), (2214, 8949), (2337, 8478), (2826, 7011), (2983, 6642), (3078, 6437), (3321, 5966), (4239, 4674)]