20342979321

素因数分解:

$3^1\times 7^1\times {\mathrm{3907}}^1\times {\mathrm{247943}}^1$

素因数の和:251860

約数の個数: 16

約数和(自身を含む): 31006884864

約数和(自身を除く): 10663905543

約数列:

[1, 3, 7, 21, 3907, 11721, 27349, 82047, 247943, 743829, 1735601, 5206803, 968713301, 2906139903, 6780993107, 20342979321]

約数ペア:

[(1, 20342979321), (3, 6780993107), (7, 2906139903), (21, 968713301), (3907, 5206803), (11721, 1735601), (27349, 743829), (82047, 247943)]