31770963

素因数分解:

$3^2\times 7^2\times {\mathrm{72043}}^1$

素因数の和:72063

約数の個数: 18

約数和(自身を含む): 53384604

約数和(自身を除く): 21613641

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 72043, 216129, 504301, 648387, 1512903, 3530107, 4538709, 10590321, 31770963]

約数ペア:

[(1, 31770963), (3, 10590321), (7, 4538709), (9, 3530107), (21, 1512903), (49, 648387), (63, 504301), (147, 216129), (441, 72043)]