20201661

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{29}}^2\times {\mathrm{157}}^1$

素因数の和:238

約数の個数: 36

約数和(自身を含む): 32202612

約数和(自身を除く): 12000951

約数列:

[1, 3, 9, 17, 29, 51, 87, 153, 157, 261, 471, 493, 841, 1413, 1479, 2523, 2669, 4437, 4553, 7569, 8007, 13659, 14297, 24021, 40977, 42891, 77401, 128673, 132037, 232203, 396111, 696609, 1188333, 2244629, 6733887, 20201661]

約数ペア:

[(1, 20201661), (3, 6733887), (9, 2244629), (17, 1188333), (29, 696609), (51, 396111), (87, 232203), (153, 132037), (157, 128673), (261, 77401), (471, 42891), (493, 40977), (841, 24021), (1413, 14297), (1479, 13659), (2523, 8007), (2669, 7569), (4437, 4553)]