21674478

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{173}}^1$

素因数の和:361

約数の個数: 64

約数和(自身を含む): 52784640

約数和(自身を除く): 31110162

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 114, 133, 157, 173, 266, 314, 346, 399, 471, 519, 798, 942, 1038, 1099, 1211, 2198, 2422, 2983, 3287, 3297, 3633, 5966, 6574, 6594, 7266, 8949, 9861, 17898, 19722, 20881, 23009, 27161, 41762, 46018, 54322, 62643, 69027, 81483, 125286, 138054, 162966, 190127, 380254, 516059, 570381, 1032118, 1140762, 1548177, 3096354, 3612413, 7224826, 10837239, 21674478]

約数ペア:

[(1, 21674478), (2, 10837239), (3, 7224826), (6, 3612413), (7, 3096354), (14, 1548177), (19, 1140762), (21, 1032118), (38, 570381), (42, 516059), (57, 380254), (114, 190127), (133, 162966), (157, 138054), (173, 125286), (266, 81483), (314, 69027), (346, 62643), (399, 54322), (471, 46018), (519, 41762), (798, 27161), (942, 23009), (1038, 20881), (1099, 19722), (1211, 17898), (2198, 9861), (2422, 8949), (2983, 7266), (3287, 6594), (3297, 6574), (3633, 5966)]