18429008

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{2161}}^1$

素因数の和:2223

約数の個数: 40

約数和(自身を含む): 39408936

約数和(自身を除く): 20979928

約数列:

[1, 2, 4, 8, 13, 16, 26, 41, 52, 82, 104, 164, 208, 328, 533, 656, 1066, 2132, 2161, 4264, 4322, 8528, 8644, 17288, 28093, 34576, 56186, 88601, 112372, 177202, 224744, 354404, 449488, 708808, 1151813, 1417616, 2303626, 4607252, 9214504, 18429008]

約数ペア:

[(1, 18429008), (2, 9214504), (4, 4607252), (8, 2303626), (13, 1417616), (16, 1151813), (26, 708808), (41, 449488), (52, 354404), (82, 224744), (104, 177202), (164, 112372), (208, 88601), (328, 56186), (533, 34576), (656, 28093), (1066, 17288), (2132, 8644), (2161, 8528), (4264, 4322)]