1921036117

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{1997}}^1$

素因数の和:2090

約数の個数: 48

約数和(自身を含む): 2666514816

約数和(自身を除く): 745478699

約数列:

[1, 7, 11, 13, 31, 77, 91, 143, 217, 341, 403, 961, 1001, 1997, 2387, 2821, 4433, 6727, 10571, 12493, 13979, 21967, 25961, 31031, 61907, 73997, 87451, 137423, 153769, 181727, 285571, 433349, 680977, 804791, 961961, 1919117, 1998997, 4766839, 5633537, 8852701, 13433819, 21110287, 24948521, 61968907, 147772009, 174639647, 274433731, 1921036117]

約数ペア:

[(1, 1921036117), (7, 274433731), (11, 174639647), (13, 147772009), (31, 61968907), (77, 24948521), (91, 21110287), (143, 13433819), (217, 8852701), (341, 5633537), (403, 4766839), (961, 1998997), (1001, 1919117), (1997, 961961), (2387, 804791), (2821, 680977), (4433, 433349), (6727, 285571), (10571, 181727), (12493, 153769), (13979, 137423), (21967, 87451), (25961, 73997), (31031, 61907)]