21803106

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:247

約数の個数: 64

約数和(自身を含む): 49545216

約数和(自身を除く): 27742110

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 62, 71, 78, 93, 127, 142, 186, 213, 254, 381, 403, 426, 762, 806, 923, 1209, 1651, 1846, 2201, 2418, 2769, 3302, 3937, 4402, 4953, 5538, 6603, 7874, 9017, 9906, 11811, 13206, 18034, 23622, 27051, 28613, 51181, 54102, 57226, 85839, 102362, 117221, 153543, 171678, 234442, 279527, 307086, 351663, 559054, 703326, 838581, 1677162, 3633851, 7267702, 10901553, 21803106]

約数ペア:

[(1, 21803106), (2, 10901553), (3, 7267702), (6, 3633851), (13, 1677162), (26, 838581), (31, 703326), (39, 559054), (62, 351663), (71, 307086), (78, 279527), (93, 234442), (127, 171678), (142, 153543), (186, 117221), (213, 102362), (254, 85839), (381, 57226), (403, 54102), (426, 51181), (762, 28613), (806, 27051), (923, 23622), (1209, 18034), (1651, 13206), (1846, 11811), (2201, 9906), (2418, 9017), (2769, 7874), (3302, 6603), (3937, 5538), (4402, 4953)]