20751375309

素因数分解:

$3^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{179}}^1\times {\mathrm{51593}}^1$

素因数の和:51889

約数の個数: 32

約数和(自身を含む): 32095595520

約数和(自身を除く): 11344220211

約数列:

[1, 3, 7, 21, 107, 179, 321, 537, 749, 1253, 2247, 3759, 19153, 51593, 57459, 134071, 154779, 361151, 402213, 1083453, 5520451, 9235147, 16561353, 27705441, 38643157, 64646029, 115929471, 193938087, 988160729, 2964482187, 6917125103, 20751375309]

約数ペア:

[(1, 20751375309), (3, 6917125103), (7, 2964482187), (21, 988160729), (107, 193938087), (179, 115929471), (321, 64646029), (537, 38643157), (749, 27705441), (1253, 16561353), (2247, 9235147), (3759, 5520451), (19153, 1083453), (51593, 402213), (57459, 361151), (134071, 154779)]