18816644

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{307}}^1$

素因数の和:528

約数の個数: 48

約数和(自身を含む): 41395200

約数和(自身を除く): 22578556

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 199, 307, 308, 398, 614, 796, 1228, 1393, 2149, 2189, 2786, 3377, 4298, 4378, 5572, 6754, 8596, 8756, 13508, 15323, 23639, 30646, 47278, 61093, 61292, 94556, 122186, 244372, 427651, 672023, 855302, 1344046, 1710604, 2688092, 4704161, 9408322, 18816644]

約数ペア:

[(1, 18816644), (2, 9408322), (4, 4704161), (7, 2688092), (11, 1710604), (14, 1344046), (22, 855302), (28, 672023), (44, 427651), (77, 244372), (154, 122186), (199, 94556), (307, 61292), (308, 61093), (398, 47278), (614, 30646), (796, 23639), (1228, 15323), (1393, 13508), (2149, 8756), (2189, 8596), (2786, 6754), (3377, 5572), (4298, 4378)]