21786459

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{317}}^1\times {\mathrm{739}}^1$

素因数の和:1090

約数の個数: 16

約数和(自身を含む): 30120960

約数和(自身を除く): 8334501

約数列:

[1, 3, 31, 93, 317, 739, 951, 2217, 9827, 22909, 29481, 68727, 234263, 702789, 7262153, 21786459]

約数ペア:

[(1, 21786459), (3, 7262153), (31, 702789), (93, 234263), (317, 68727), (739, 29481), (951, 22909), (2217, 9827)]