18000008

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{10181}}^1$

素因数の和:10217

約数の個数: 32

約数和(自身を含む): 38487960

約数和(自身を除く): 20487952

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 221, 442, 884, 1768, 10181, 20362, 40724, 81448, 132353, 173077, 264706, 346154, 529412, 692308, 1058824, 1384616, 2250001, 4500002, 9000004, 18000008]

約数ペア:

[(1, 18000008), (2, 9000004), (4, 4500002), (8, 2250001), (13, 1384616), (17, 1058824), (26, 692308), (34, 529412), (52, 346154), (68, 264706), (104, 173077), (136, 132353), (221, 81448), (442, 40724), (884, 20362), (1768, 10181)]