18468849

素因数分解:

$3^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{2089}}^1$

素因数の和:2520

約数の個数: 16

約数和(自身を含む): 28223360

約数和(自身を除く): 9754511

約数列:

[1, 3, 7, 21, 421, 1263, 2089, 2947, 6267, 8841, 14623, 43869, 879469, 2638407, 6156283, 18468849]

約数ペア:

[(1, 18468849), (3, 6156283), (7, 2638407), (21, 879469), (421, 43869), (1263, 14623), (2089, 8841), (2947, 6267)]