18638343

素因数分解:

$3^6\times {\mathrm{37}}^1\times {\mathrm{691}}^1$

素因数の和:746

約数の個数: 28

約数和(自身を含む): 28741528

約数和(自身を除く): 10103185

約数列:

[1, 3, 9, 27, 37, 81, 111, 243, 333, 691, 729, 999, 2073, 2997, 6219, 8991, 18657, 25567, 26973, 55971, 76701, 167913, 230103, 503739, 690309, 2070927, 6212781, 18638343]

約数ペア:

[(1, 18638343), (3, 6212781), (9, 2070927), (27, 690309), (37, 503739), (81, 230103), (111, 167913), (243, 76701), (333, 55971), (691, 26973), (729, 25567), (999, 18657), (2073, 8991), (2997, 6219)]