21757059

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{443}}^1$

素因数の和:576

約数の個数: 32

約数和(自身を含む): 34525440

約数和(自身を除く): 12768381

約数列:

[1, 3, 9, 17, 27, 51, 107, 153, 321, 443, 459, 963, 1329, 1819, 2889, 3987, 5457, 7531, 11961, 16371, 22593, 47401, 49113, 67779, 142203, 203337, 426609, 805817, 1279827, 2417451, 7252353, 21757059]

約数ペア:

[(1, 21757059), (3, 7252353), (9, 2417451), (17, 1279827), (27, 805817), (51, 426609), (107, 203337), (153, 142203), (321, 67779), (443, 49113), (459, 47401), (963, 22593), (1329, 16371), (1819, 11961), (2889, 7531), (3987, 5457)]