81307212

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{13633}}^1$

素因数の和:13718

約数の個数: 48

約数和(自身を含む): 219889152

約数和(自身を除く): 138581940

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 71, 84, 142, 213, 284, 426, 497, 852, 994, 1491, 1988, 2982, 5964, 13633, 27266, 40899, 54532, 81798, 95431, 163596, 190862, 286293, 381724, 572586, 967943, 1145172, 1935886, 2903829, 3871772, 5807658, 6775601, 11615316, 13551202, 20326803, 27102404, 40653606, 81307212]

約数ペア:

[(1, 81307212), (2, 40653606), (3, 27102404), (4, 20326803), (6, 13551202), (7, 11615316), (12, 6775601), (14, 5807658), (21, 3871772), (28, 2903829), (42, 1935886), (71, 1145172), (84, 967943), (142, 572586), (213, 381724), (284, 286293), (426, 190862), (497, 163596), (852, 95431), (994, 81798), (1491, 54532), (1988, 40899), (2982, 27266), (5964, 13633)]