18206419

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:211

約数の個数: 32

約数和(自身を含む): 23869440

約数和(自身を除く): 5663021

約数列:

[1, 7, 11, 41, 73, 77, 79, 287, 451, 511, 553, 803, 869, 2993, 3157, 3239, 5621, 5767, 6083, 20951, 22673, 32923, 35629, 40369, 63437, 230461, 236447, 249403, 444059, 1655129, 2600917, 18206419]

約数ペア:

[(1, 18206419), (7, 2600917), (11, 1655129), (41, 444059), (73, 249403), (77, 236447), (79, 230461), (287, 63437), (451, 40369), (511, 35629), (553, 32923), (803, 22673), (869, 20951), (2993, 6083), (3157, 5767), (3239, 5621)]