28173761

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:126

約数の個数: 48

約数和(自身を含む): 38814720

約数和(自身を除く): 10640959

約数列:

[1, 7, 11, 29, 31, 37, 77, 121, 203, 217, 259, 319, 341, 407, 847, 899, 1073, 1147, 2233, 2387, 2849, 3509, 3751, 4477, 6293, 7511, 8029, 9889, 11803, 12617, 24563, 26257, 31339, 33263, 69223, 82621, 88319, 108779, 129833, 138787, 232841, 365893, 761453, 908831, 971509, 2561251, 4024823, 28173761]

約数ペア:

[(1, 28173761), (7, 4024823), (11, 2561251), (29, 971509), (31, 908831), (37, 761453), (77, 365893), (121, 232841), (203, 138787), (217, 129833), (259, 108779), (319, 88319), (341, 82621), (407, 69223), (847, 33263), (899, 31339), (1073, 26257), (1147, 24563), (2233, 12617), (2387, 11803), (2849, 9889), (3509, 8029), (3751, 7511), (4477, 6293)]