18290426

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{47}}^1$

素因数の和:112

約数の個数: 72

約数和(自身を含む): 37526976

約数和(自身を除く): 19236550

約数列:

[1, 2, 7, 11, 14, 19, 22, 38, 47, 49, 77, 94, 98, 133, 154, 209, 266, 329, 361, 418, 517, 539, 658, 722, 893, 931, 1034, 1078, 1463, 1786, 1862, 2303, 2527, 2926, 3619, 3971, 4606, 5054, 6251, 7238, 7942, 9823, 10241, 12502, 16967, 17689, 19646, 20482, 25333, 27797, 33934, 35378, 43757, 50666, 55594, 68761, 87514, 118769, 137522, 186637, 194579, 237538, 373274, 389158, 481327, 831383, 962654, 1306459, 1662766, 2612918, 9145213, 18290426]

約数ペア:

[(1, 18290426), (2, 9145213), (7, 2612918), (11, 1662766), (14, 1306459), (19, 962654), (22, 831383), (38, 481327), (47, 389158), (49, 373274), (77, 237538), (94, 194579), (98, 186637), (133, 137522), (154, 118769), (209, 87514), (266, 68761), (329, 55594), (361, 50666), (418, 43757), (517, 35378), (539, 33934), (658, 27797), (722, 25333), (893, 20482), (931, 19646), (1034, 17689), (1078, 16967), (1463, 12502), (1786, 10241), (1862, 9823), (2303, 7942), (2527, 7238), (2926, 6251), (3619, 5054), (3971, 4606)]