28331303

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1$

素因数の和:156

約数の個数: 48

約数和(自身を含む): 40040448

約数和(自身を除く): 11709145

約数列:

[1, 7, 11, 13, 31, 77, 83, 91, 121, 143, 217, 341, 403, 581, 847, 913, 1001, 1079, 1573, 2387, 2573, 2821, 3751, 4433, 6391, 7553, 10043, 11011, 11869, 18011, 26257, 28303, 31031, 33449, 48763, 70301, 83083, 130559, 198121, 234143, 311333, 341341, 367939, 913913, 2179331, 2575573, 4047329, 28331303]

約数ペア:

[(1, 28331303), (7, 4047329), (11, 2575573), (13, 2179331), (31, 913913), (77, 367939), (83, 341341), (91, 311333), (121, 234143), (143, 198121), (217, 130559), (341, 83083), (403, 70301), (581, 48763), (847, 33449), (913, 31031), (1001, 28303), (1079, 26257), (1573, 18011), (2387, 11869), (2573, 11011), (2821, 10043), (3751, 7553), (4433, 6391)]