20159156655

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2143451}}^1$

素因数の和:2143492

約数の個数: 48

約数和(自身を含む): 40125421440

約数和(自身を除く): 19966264785

約数列:

[1, 3, 5, 9, 11, 15, 19, 33, 45, 55, 57, 95, 99, 165, 171, 209, 285, 495, 627, 855, 1045, 1881, 3135, 9405, 2143451, 6430353, 10717255, 19291059, 23577961, 32151765, 40725569, 70733883, 96455295, 117889805, 122176707, 203627845, 212201649, 353669415, 366530121, 447981259, 610883535, 1061008245, 1343943777, 1832650605, 2239906295, 4031831331, 6719718885, 20159156655]

約数ペア:

[(1, 20159156655), (3, 6719718885), (5, 4031831331), (9, 2239906295), (11, 1832650605), (15, 1343943777), (19, 1061008245), (33, 610883535), (45, 447981259), (55, 366530121), (57, 353669415), (95, 212201649), (99, 203627845), (165, 122176707), (171, 117889805), (209, 96455295), (285, 70733883), (495, 40725569), (627, 32151765), (855, 23577961), (1045, 19291059), (1881, 10717255), (3135, 6430353), (9405, 2143451)]