21388616065

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{857}}^1\times {\mathrm{9059}}^1$

素因数の和:9969

約数の個数: 32

約数和(自身を含む): 27984528000

約数和(自身を除く): 6595911935

約数列:

[1, 5, 19, 29, 95, 145, 551, 857, 2755, 4285, 9059, 16283, 24853, 45295, 81415, 124265, 172121, 262711, 472207, 860605, 1313555, 2361035, 4991509, 7763563, 24957545, 38817815, 147507697, 225143327, 737538485, 1125716635, 4277723213, 21388616065]

約数ペア:

[(1, 21388616065), (5, 4277723213), (19, 1125716635), (29, 737538485), (95, 225143327), (145, 147507697), (551, 38817815), (857, 24957545), (2755, 7763563), (4285, 4991509), (9059, 2361035), (16283, 1313555), (24853, 860605), (45295, 472207), (81415, 262711), (124265, 172121)]