12721156

素因数分解:

$2^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{6781}}^1$

素因数の和:6859

約数の個数: 24

約数和(自身を含む): 25825856

約数和(自身を除く): 13104700

約数列:

[1, 2, 4, 7, 14, 28, 67, 134, 268, 469, 938, 1876, 6781, 13562, 27124, 47467, 94934, 189868, 454327, 908654, 1817308, 3180289, 6360578, 12721156]

約数ペア:

[(1, 12721156), (2, 6360578), (4, 3180289), (7, 1817308), (14, 908654), (28, 454327), (67, 189868), (134, 94934), (268, 47467), (469, 27124), (938, 13562), (1876, 6781)]