21000772809

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{3559}}^1\times {\mathrm{38567}}^1$

素因数の和:42149

約数の個数: 24

約数和(自身を含む): 32128686720

約数和(自身を除く): 11127913911

約数列:

[1, 3, 9, 17, 51, 153, 3559, 10677, 32031, 38567, 60503, 115701, 181509, 347103, 544527, 655639, 1966917, 5900751, 137259953, 411779859, 1235339577, 2333419201, 7000257603, 21000772809]

約数ペア:

[(1, 21000772809), (3, 7000257603), (9, 2333419201), (17, 1235339577), (51, 411779859), (153, 137259953), (3559, 5900751), (10677, 1966917), (32031, 655639), (38567, 544527), (60503, 347103), (115701, 181509)]