18408068343

素因数分解:

$3^4\times 7^1\times {\mathrm{32465729}}^1$

素因数の和:32465748

約数の個数: 20

約数和(自身を含む): 31426826640

約数和(自身を除く): 13018758297

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 32465729, 97397187, 227260103, 292191561, 681780309, 876574683, 2045340927, 2629724049, 6136022781, 18408068343]

約数ペア:

[(1, 18408068343), (3, 6136022781), (7, 2629724049), (9, 2045340927), (21, 876574683), (27, 681780309), (63, 292191561), (81, 227260103), (189, 97397187), (567, 32465729)]