20561680223

素因数分解:

$7^2\times {\mathrm{139}}^1\times {\mathrm{547}}^1\times {\mathrm{5519}}^1$

素因数の和:6219

約数の個数: 24

約数和(自身を含む): 24139180800

約数和(自身を除く): 3577500577

約数列:

[1, 7, 49, 139, 547, 973, 3829, 5519, 6811, 26803, 38633, 76033, 270431, 532231, 767141, 3018893, 3725617, 5369987, 21132251, 37589909, 147925757, 419626127, 2937382889, 20561680223]

約数ペア:

[(1, 20561680223), (7, 2937382889), (49, 419626127), (139, 147925757), (547, 37589909), (973, 21132251), (3829, 5369987), (5519, 3725617), (6811, 3018893), (26803, 767141), (38633, 532231), (76033, 270431)]