19971928561

素因数分解:

${\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{191}}^1\times {\mathrm{1459}}^1$

素因数の和:1849

約数の個数: 32

約数和(自身を含む): 22369536000

約数和(自身を除く): 2397607439

約数列:

[1, 13, 37, 149, 191, 481, 1459, 1937, 2483, 5513, 7067, 18967, 28459, 53983, 71669, 91871, 217391, 278669, 369967, 701779, 1052983, 2826083, 3622697, 8043467, 10310753, 13688779, 41521681, 104565071, 134039789, 539781853, 1536302197, 19971928561]

約数ペア:

[(1, 19971928561), (13, 1536302197), (37, 539781853), (149, 134039789), (191, 104565071), (481, 41521681), (1459, 13688779), (1937, 10310753), (2483, 8043467), (5513, 3622697), (7067, 2826083), (18967, 1052983), (28459, 701779), (53983, 369967), (71669, 278669), (91871, 217391)]