21056091

素因数分解:

$3^1\times 7^1\times {\mathrm{317}}^1\times {\mathrm{3163}}^1$

素因数の和:3490

約数の個数: 16

約数和(自身を含む): 32196864

約数和(自身を除く): 11140773

約数列:

[1, 3, 7, 21, 317, 951, 2219, 3163, 6657, 9489, 22141, 66423, 1002671, 3008013, 7018697, 21056091]

約数ペア:

[(1, 21056091), (3, 7018697), (7, 3008013), (21, 1002671), (317, 66423), (951, 22141), (2219, 9489), (3163, 6657)]