19936707957

素因数分解:

$3^4\times {\mathrm{157}}^1\times {\mathrm{1567721}}^1$

素因数の和:1567890

約数の個数: 20

約数和(自身を含む): 29971709196

約数和(自身を除く): 10035001239

約数列:

[1, 3, 9, 27, 81, 157, 471, 1413, 4239, 12717, 1567721, 4703163, 14109489, 42328467, 126985401, 246132197, 738396591, 2215189773, 6645569319, 19936707957]

約数ペア:

[(1, 19936707957), (3, 6645569319), (9, 2215189773), (27, 738396591), (81, 246132197), (157, 126985401), (471, 42328467), (1413, 14109489), (4239, 4703163), (12717, 1567721)]