21654534

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1$

素因数の和:225

約数の個数: 64

約数和(自身を含む): 49351680

約数和(自身を除く): 27697146

約数列:

[1, 2, 3, 6, 11, 22, 33, 59, 66, 67, 83, 118, 134, 166, 177, 201, 249, 354, 402, 498, 649, 737, 913, 1298, 1474, 1826, 1947, 2211, 2739, 3894, 3953, 4422, 4897, 5478, 5561, 7906, 9794, 11122, 11859, 14691, 16683, 23718, 29382, 33366, 43483, 53867, 61171, 86966, 107734, 122342, 130449, 161601, 183513, 260898, 323202, 328099, 367026, 656198, 984297, 1968594, 3609089, 7218178, 10827267, 21654534]

約数ペア:

[(1, 21654534), (2, 10827267), (3, 7218178), (6, 3609089), (11, 1968594), (22, 984297), (33, 656198), (59, 367026), (66, 328099), (67, 323202), (83, 260898), (118, 183513), (134, 161601), (166, 130449), (177, 122342), (201, 107734), (249, 86966), (354, 61171), (402, 53867), (498, 43483), (649, 33366), (737, 29382), (913, 23718), (1298, 16683), (1474, 14691), (1826, 11859), (1947, 11122), (2211, 9794), (2739, 7906), (3894, 5561), (3953, 5478), (4422, 4897)]