20857738

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{1091}}^1$

素因数の和:1194

約数の個数: 24

約数和(自身を含む): 34856640

約数和(自身を除く): 13998902

約数列:

[1, 2, 11, 22, 79, 121, 158, 242, 869, 1091, 1738, 2182, 9559, 12001, 19118, 24002, 86189, 132011, 172378, 264022, 948079, 1896158, 10428869, 20857738]

約数ペア:

[(1, 20857738), (2, 10428869), (11, 1896158), (22, 948079), (79, 264022), (121, 172378), (158, 132011), (242, 86189), (869, 24002), (1091, 19118), (1738, 12001), (2182, 9559)]