19428794

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{269}}^1$

素因数の和:363

約数の個数: 48

約数和(自身を含む): 37674720

約数和(自身を除く): 18245926

約数列:

[1, 2, 7, 11, 14, 22, 49, 67, 77, 98, 134, 154, 269, 469, 538, 539, 737, 938, 1078, 1474, 1883, 2959, 3283, 3766, 5159, 5918, 6566, 10318, 13181, 18023, 20713, 26362, 36046, 36113, 41426, 72226, 126161, 144991, 198253, 252322, 289982, 396506, 883127, 1387771, 1766254, 2775542, 9714397, 19428794]

約数ペア:

[(1, 19428794), (2, 9714397), (7, 2775542), (11, 1766254), (14, 1387771), (22, 883127), (49, 396506), (67, 289982), (77, 252322), (98, 198253), (134, 144991), (154, 126161), (269, 72226), (469, 41426), (538, 36113), (539, 36046), (737, 26362), (938, 20713), (1078, 18023), (1474, 13181), (1883, 10318), (2959, 6566), (3283, 5918), (3766, 5159)]