18748808

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{4397}}^1$

素因数の和:4457

約数の個数: 32

約数和(自身を含む): 38790360

約数和(自身を除く): 20041552

約数列:

[1, 2, 4, 8, 13, 26, 41, 52, 82, 104, 164, 328, 533, 1066, 2132, 4264, 4397, 8794, 17588, 35176, 57161, 114322, 180277, 228644, 360554, 457288, 721108, 1442216, 2343601, 4687202, 9374404, 18748808]

約数ペア:

[(1, 18748808), (2, 9374404), (4, 4687202), (8, 2343601), (13, 1442216), (26, 721108), (41, 457288), (52, 360554), (82, 228644), (104, 180277), (164, 114322), (328, 57161), (533, 35176), (1066, 17588), (2132, 8794), (4264, 4397)]