19893874

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{523}}^1$

素因数の和:575

約数の個数: 64

約数和(自身を含む): 42255360

約数和(自身を除く): 22361486

約数列:

[1, 2, 7, 11, 13, 14, 19, 22, 26, 38, 77, 91, 133, 143, 154, 182, 209, 247, 266, 286, 418, 494, 523, 1001, 1046, 1463, 1729, 2002, 2717, 2926, 3458, 3661, 5434, 5753, 6799, 7322, 9937, 11506, 13598, 19019, 19874, 38038, 40271, 47593, 69559, 74789, 80542, 95186, 109307, 129181, 139118, 149578, 218614, 258362, 523523, 765149, 904267, 1047046, 1420991, 1530298, 1808534, 2841982, 9946937, 19893874]

約数ペア:

[(1, 19893874), (2, 9946937), (7, 2841982), (11, 1808534), (13, 1530298), (14, 1420991), (19, 1047046), (22, 904267), (26, 765149), (38, 523523), (77, 258362), (91, 218614), (133, 149578), (143, 139118), (154, 129181), (182, 109307), (209, 95186), (247, 80542), (266, 74789), (286, 69559), (418, 47593), (494, 40271), (523, 38038), (1001, 19874), (1046, 19019), (1463, 13598), (1729, 11506), (2002, 9937), (2717, 7322), (2926, 6799), (3458, 5753), (3661, 5434)]