16725709

素因数分解:

$7^3\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1$

素因数の和:87

約数の個数: 48

約数和(自身を含む): 23833600

約数和(自身を除く): 7107891

約数列:

[1, 7, 11, 13, 31, 49, 77, 91, 121, 143, 217, 341, 343, 403, 539, 637, 847, 1001, 1519, 1573, 2387, 2821, 3751, 3773, 4433, 4459, 5929, 7007, 10633, 11011, 16709, 19747, 26257, 31031, 41503, 48763, 49049, 77077, 116963, 138229, 183799, 217217, 341341, 539539, 1286593, 1520519, 2389387, 16725709]

約数ペア:

[(1, 16725709), (7, 2389387), (11, 1520519), (13, 1286593), (31, 539539), (49, 341341), (77, 217217), (91, 183799), (121, 138229), (143, 116963), (217, 77077), (341, 49049), (343, 48763), (403, 41503), (539, 31031), (637, 26257), (847, 19747), (1001, 16709), (1519, 11011), (1573, 10633), (2387, 7007), (2821, 5929), (3751, 4459), (3773, 4433)]