20512142651

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{233}}^1\times {\mathrm{2837}}^1$

素因数の和:3132

約数の個数: 64

約数和(自身を含む): 28561268736

約数和(自身を除く): 8049126085

約数列:

[1, 7, 11, 13, 31, 77, 91, 143, 217, 233, 341, 403, 1001, 1631, 2387, 2563, 2821, 2837, 3029, 4433, 7223, 17941, 19859, 21203, 31031, 31207, 33319, 36881, 50561, 79453, 87947, 93899, 218449, 233233, 258167, 405691, 556171, 615629, 657293, 661021, 967417, 1032889, 1143311, 2839837, 4627147, 6771919, 7230223, 7271231, 8003177, 8593273, 12576421, 20491651, 50898617, 60152911, 88034947, 94526003, 143441557, 225408161, 266391463, 661682021, 1577857127, 1864740241, 2930306093, 20512142651]

約数ペア:

[(1, 20512142651), (7, 2930306093), (11, 1864740241), (13, 1577857127), (31, 661682021), (77, 266391463), (91, 225408161), (143, 143441557), (217, 94526003), (233, 88034947), (341, 60152911), (403, 50898617), (1001, 20491651), (1631, 12576421), (2387, 8593273), (2563, 8003177), (2821, 7271231), (2837, 7230223), (3029, 6771919), (4433, 4627147), (7223, 2839837), (17941, 1143311), (19859, 1032889), (21203, 967417), (31031, 661021), (31207, 657293), (33319, 615629), (36881, 556171), (50561, 405691), (79453, 258167), (87947, 233233), (93899, 218449)]