1320221749

素因数分解:

$7^3\times {\mathrm{11}}^1\times {\mathrm{349913}}^1$

素因数の和:349945

約数の個数: 16

約数和(自身を含む): 1679587200

約数和(自身を除く): 359365451

約数列:

[1, 7, 11, 49, 77, 343, 539, 3773, 349913, 2449391, 3849043, 17145737, 26943301, 120020159, 188603107, 1320221749]

約数ペア:

[(1, 1320221749), (7, 188603107), (11, 120020159), (49, 26943301), (77, 17145737), (343, 3849043), (539, 2449391), (3773, 349913)]