20390847

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{229}}^1\times {\mathrm{443}}^1$

素因数の和:742

約数の個数: 16

約数和(自身を含む): 27776640

約数和(自身を除く): 7385793

約数列:

[1, 3, 67, 201, 229, 443, 687, 1329, 15343, 29681, 46029, 89043, 101447, 304341, 6796949, 20390847]

約数ペア:

[(1, 20390847), (3, 6796949), (67, 304341), (201, 101447), (229, 89043), (443, 46029), (687, 29681), (1329, 15343)]