18780314

素因数分解:

$2^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{21991}}^1$

素因数の和:22061

約数の個数: 16

約数和(自身を含む): 32724096

約数和(自身を除く): 13943782

約数列:

[1, 2, 7, 14, 61, 122, 427, 854, 21991, 43982, 153937, 307874, 1341451, 2682902, 9390157, 18780314]

約数ペア:

[(1, 18780314), (2, 9390157), (7, 2682902), (14, 1341451), (61, 307874), (122, 153937), (427, 43982), (854, 21991)]