20173746537

素因数分解:

$3^2\times 7^2\times {\mathrm{45745457}}^1$

素因数の和:45745477

約数の個数: 18

約数和(自身を含む): 33897384378

約数和(自身を除く): 13723637841

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 45745457, 137236371, 320218199, 411709113, 960654597, 2241527393, 2881963791, 6724582179, 20173746537]

約数ペア:

[(1, 20173746537), (3, 6724582179), (7, 2881963791), (9, 2241527393), (21, 960654597), (49, 411709113), (63, 320218199), (147, 137236371), (441, 45745457)]