21304549895960

素因数分解:

$2^3\times 5^1\times {\mathrm{41911}}^1\times {\mathrm{12708209}}^1$

素因数の和:12750131

約数の個数: 32

約数和(自身を含む): 47936384776800

約数和(自身を除く): 26631834880840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41911, 83822, 167644, 209555, 335288, 419110, 838220, 1676440, 12708209, 25416418, 50832836, 63541045, 101665672, 127082090, 254164180, 508328360, 532613747399, 1065227494798, 2130454989596, 2663068736995, 4260909979192, 5326137473990, 10652274947980, 21304549895960]

約数ペア:

[(1, 21304549895960), (2, 10652274947980), (4, 5326137473990), (5, 4260909979192), (8, 2663068736995), (10, 2130454989596), (20, 1065227494798), (40, 532613747399), (41911, 508328360), (83822, 254164180), (167644, 127082090), (209555, 101665672), (335288, 63541045), (419110, 50832836), (838220, 25416418), (1676440, 12708209)]