19996938

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{881}}^1$

素因数の和:999

約数の個数: 48

約数和(自身を含む): 47194056

約数和(自身を除く): 27197118

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 97, 117, 194, 234, 291, 582, 873, 881, 1261, 1746, 1762, 2522, 2643, 3783, 5286, 7566, 7929, 11349, 11453, 15858, 22698, 22906, 34359, 68718, 85457, 103077, 170914, 206154, 256371, 512742, 769113, 1110941, 1538226, 2221882, 3332823, 6665646, 9998469, 19996938]

約数ペア:

[(1, 19996938), (2, 9998469), (3, 6665646), (6, 3332823), (9, 2221882), (13, 1538226), (18, 1110941), (26, 769113), (39, 512742), (78, 256371), (97, 206154), (117, 170914), (194, 103077), (234, 85457), (291, 68718), (582, 34359), (873, 22906), (881, 22698), (1261, 15858), (1746, 11453), (1762, 11349), (2522, 7929), (2643, 7566), (3783, 5286)]