20946429

素因数分解:

$3^2\times 7^1\times {\mathrm{503}}^1\times {\mathrm{661}}^1$

素因数の和:1177

約数の個数: 24

約数和(自身を含む): 34699392

約数和(自身を除く): 13752963

約数列:

[1, 3, 7, 9, 21, 63, 503, 661, 1509, 1983, 3521, 4527, 4627, 5949, 10563, 13881, 31689, 41643, 332483, 997449, 2327381, 2992347, 6982143, 20946429]

約数ペア:

[(1, 20946429), (3, 6982143), (7, 2992347), (9, 2327381), (21, 997449), (63, 332483), (503, 41643), (661, 31689), (1509, 13881), (1983, 10563), (3521, 5949), (4527, 4627)]