21036141

素因数分解:

$3^2\times 7^2\times {\mathrm{47701}}^1$

素因数の和:47721

約数の個数: 18

約数和(自身を含む): 35347182

約数和(自身を除く): 14311041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 47701, 143103, 333907, 429309, 1001721, 2337349, 3005163, 7012047, 21036141]

約数ペア:

[(1, 21036141), (3, 7012047), (7, 3005163), (9, 2337349), (21, 1001721), (49, 429309), (63, 333907), (147, 143103), (441, 47701)]