18138087

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{20357}}^1$

素因数の和:20380

約数の個数: 20

約数和(自身を含む): 29559816

約数和(自身を除く): 11421729

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 20357, 61071, 183213, 223927, 549639, 671781, 1648917, 2015343, 6046029, 18138087]

約数ペア:

[(1, 18138087), (3, 6046029), (9, 2015343), (11, 1648917), (27, 671781), (33, 549639), (81, 223927), (99, 183213), (297, 61071), (891, 20357)]