20731299

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{401}}^1\times {\mathrm{907}}^1$

素因数の和:1330

約数の個数: 16

約数和(自身を含む): 29201280

約数和(自身を除く): 8469981

約数列:

[1, 3, 19, 57, 401, 907, 1203, 2721, 7619, 17233, 22857, 51699, 363707, 1091121, 6910433, 20731299]

約数ペア:

[(1, 20731299), (3, 6910433), (19, 1091121), (57, 363707), (401, 51699), (907, 22857), (1203, 17233), (2721, 7619)]