19421017

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{311}}^1\times {\mathrm{811}}^1$

素因数の和:1140

約数の個数: 16

約数和(自身を含む): 24321024

約数和(自身を除く): 4900007

約数列:

[1, 7, 11, 77, 311, 811, 2177, 3421, 5677, 8921, 23947, 62447, 252221, 1765547, 2774431, 19421017]

約数ペア:

[(1, 19421017), (7, 2774431), (11, 1765547), (77, 252221), (311, 62447), (811, 23947), (2177, 8921), (3421, 5677)]