20704089

素因数分解:

$3^1\times 7^1\times {\mathrm{907}}^1\times {\mathrm{1087}}^1$

素因数の和:2004

約数の個数: 16

約数和(自身を含む): 31612928

約数和(自身を除く): 10908839

約数列:

[1, 3, 7, 21, 907, 1087, 2721, 3261, 6349, 7609, 19047, 22827, 985909, 2957727, 6901363, 20704089]

約数ペア:

[(1, 20704089), (3, 6901363), (7, 2957727), (21, 985909), (907, 22827), (1087, 19047), (2721, 7609), (3261, 6349)]