21174507

素因数分解:

$3^3\times {\mathrm{53}}^1\times {\mathrm{14797}}^1$

素因数の和:14859

約数の個数: 16

約数和(自身を含む): 31963680

約数和(自身を除く): 10789173

約数列:

[1, 3, 9, 27, 53, 159, 477, 1431, 14797, 44391, 133173, 399519, 784241, 2352723, 7058169, 21174507]

約数ペア:

[(1, 21174507), (3, 7058169), (9, 2352723), (27, 784241), (53, 399519), (159, 133173), (477, 44391), (1431, 14797)]