20798211

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{13567}}^1$

素因数の和:13650

約数の個数: 16

約数和(自身を含む): 32129024

約数和(自身を除く): 11330813

約数列:

[1, 3, 7, 21, 73, 219, 511, 1533, 13567, 40701, 94969, 284907, 990391, 2971173, 6932737, 20798211]

約数ペア:

[(1, 20798211), (3, 6932737), (7, 2971173), (21, 990391), (73, 284907), (219, 94969), (511, 40701), (1533, 13567)]