20403291293

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{211}}^1\times {\mathrm{17203}}^1$

素因数の和:17505

約数の個数: 32

約数和(自身を含む): 25910049792

約数和(自身を除く): 5506758499

約数列:

[1, 7, 11, 73, 77, 211, 511, 803, 1477, 2321, 5621, 15403, 16247, 17203, 107821, 120421, 169433, 189233, 1186031, 1255819, 1324631, 3629833, 8790733, 13814009, 25408831, 39928163, 96698063, 264977809, 279497141, 1854844663, 2914755899, 20403291293]

約数ペア:

[(1, 20403291293), (7, 2914755899), (11, 1854844663), (73, 279497141), (77, 264977809), (211, 96698063), (511, 39928163), (803, 25408831), (1477, 13814009), (2321, 8790733), (5621, 3629833), (15403, 1324631), (16247, 1255819), (17203, 1186031), (107821, 189233), (120421, 169433)]