20853465215

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{983}}^1\times {\mathrm{2131}}^1$

素因数の和:3311

約数の個数: 32

約数和(自身を含む): 27490724352

約数和(自身を除く): 6637259137

約数列:

[1, 5, 11, 55, 181, 905, 983, 1991, 2131, 4915, 9955, 10655, 10813, 23441, 54065, 117205, 177923, 385711, 889615, 1928555, 1957153, 2094773, 4242821, 9785765, 10473865, 21214105, 23042503, 115212515, 379153913, 1895769565, 4170693043, 20853465215]

約数ペア:

[(1, 20853465215), (5, 4170693043), (11, 1895769565), (55, 379153913), (181, 115212515), (905, 23042503), (983, 21214105), (1991, 10473865), (2131, 9785765), (4915, 4242821), (9955, 2094773), (10655, 1957153), (10813, 1928555), (23441, 889615), (54065, 385711), (117205, 177923)]