7640787

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{97}}^1$

素因数の和:160

約数の個数: 48

約数和(自身を含む): 13346816

約数和(自身を除く): 5706029

約数列:

[1, 3, 7, 11, 21, 31, 33, 77, 93, 97, 121, 217, 231, 291, 341, 363, 651, 679, 847, 1023, 1067, 2037, 2387, 2541, 3007, 3201, 3751, 7161, 7469, 9021, 11253, 11737, 21049, 22407, 26257, 33077, 35211, 63147, 78771, 82159, 99231, 231539, 246477, 363847, 694617, 1091541, 2546929, 7640787]

約数ペア:

[(1, 7640787), (3, 2546929), (7, 1091541), (11, 694617), (21, 363847), (31, 246477), (33, 231539), (77, 99231), (93, 82159), (97, 78771), (121, 63147), (217, 35211), (231, 33077), (291, 26257), (341, 22407), (363, 21049), (651, 11737), (679, 11253), (847, 9021), (1023, 7469), (1067, 7161), (2037, 3751), (2387, 3201), (2541, 3007)]