21771141

素因数分解:

$3^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{5107}}^1$

素因数の和:5153

約数の個数: 24

約数和(自身を含む): 34938720

約数和(自身を除く): 13167579

約数列:

[1, 3, 7, 21, 29, 49, 87, 147, 203, 609, 1421, 4263, 5107, 15321, 35749, 107247, 148103, 250243, 444309, 750729, 1036721, 3110163, 7257047, 21771141]

約数ペア:

[(1, 21771141), (3, 7257047), (7, 3110163), (21, 1036721), (29, 750729), (49, 444309), (87, 250243), (147, 148103), (203, 107247), (609, 35749), (1421, 15321), (4263, 5107)]