20565346599

素因数分解:

$3^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{656809}}^1$

素因数の和:656900

約数の個数: 36

約数和(自身を含む): 35042127120

約数和(自身を除く): 14476780521

約数列:

[1, 3, 7, 9, 21, 49, 63, 71, 147, 213, 441, 497, 639, 1491, 3479, 4473, 10437, 31311, 656809, 1970427, 4597663, 5911281, 13792989, 32183641, 41378967, 46633439, 96550923, 139900317, 289652769, 326434073, 419700951, 979302219, 2285038511, 2937906657, 6855115533, 20565346599]

約数ペア:

[(1, 20565346599), (3, 6855115533), (7, 2937906657), (9, 2285038511), (21, 979302219), (49, 419700951), (63, 326434073), (71, 289652769), (147, 139900317), (213, 96550923), (441, 46633439), (497, 41378967), (639, 32183641), (1491, 13792989), (3479, 5911281), (4473, 4597663), (10437, 1970427), (31311, 656809)]