21000686697

素因数分解:

$3^5\times {\mathrm{613}}^1\times {\mathrm{140983}}^1$

素因数の和:141611

約数の個数: 24

約数和(自身を含む): 31509360064

約数和(自身を除く): 10508673367

約数列:

[1, 3, 9, 27, 81, 243, 613, 1839, 5517, 16551, 49653, 140983, 148959, 422949, 1268847, 3806541, 11419623, 34258869, 86422579, 259267737, 777803211, 2333409633, 7000228899, 21000686697]

約数ペア:

[(1, 21000686697), (3, 7000228899), (9, 2333409633), (27, 777803211), (81, 259267737), (243, 86422579), (613, 34258869), (1839, 11419623), (5517, 3806541), (16551, 1268847), (49653, 422949), (140983, 148959)]