1988371

素因数分解:

$7^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1$

素因数の和:80

約数の個数: 32

約数和(自身を含む): 2764800

約数和(自身を除く): 776429

約数列:

[1, 7, 11, 17, 31, 49, 77, 119, 187, 217, 341, 343, 527, 539, 833, 1309, 1519, 2387, 3689, 3773, 5797, 5831, 9163, 10633, 16709, 25823, 40579, 64141, 116963, 180761, 284053, 1988371]

約数ペア:

[(1, 1988371), (7, 284053), (11, 180761), (17, 116963), (31, 64141), (49, 40579), (77, 25823), (119, 16709), (187, 10633), (217, 9163), (341, 5831), (343, 5797), (527, 3773), (539, 3689), (833, 2387), (1309, 1519)]