19156960291

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{211}}^1\times {\mathrm{18191}}^1$

素因数の和:18463

約数の個数: 32

約数和(自身を含む): 23695589376

約数和(自身を除く): 4538629085

約数列:

[1, 7, 23, 31, 161, 211, 217, 713, 1477, 4853, 4991, 6541, 18191, 33971, 45787, 127337, 150443, 418393, 563921, 1053101, 2928751, 3838301, 3947447, 12970183, 26868107, 88280923, 90791281, 118987331, 617966461, 832911317, 2736708613, 19156960291]

約数ペア:

[(1, 19156960291), (7, 2736708613), (23, 832911317), (31, 617966461), (161, 118987331), (211, 90791281), (217, 88280923), (713, 26868107), (1477, 12970183), (4853, 3947447), (4991, 3838301), (6541, 2928751), (18191, 1053101), (33971, 563921), (45787, 418393), (127337, 150443)]