91991781

素因数分解:

$3^8\times 7^1\times {\mathrm{2003}}^1$

素因数の和:2034

約数の個数: 36

約数和(自身を含む): 157770912

約数和(自身を除く): 65779131

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 729, 1701, 2003, 2187, 5103, 6009, 6561, 14021, 15309, 18027, 42063, 45927, 54081, 126189, 162243, 378567, 486729, 1135701, 1460187, 3407103, 4380561, 10221309, 13141683, 30663927, 91991781]

約数ペア:

[(1, 91991781), (3, 30663927), (7, 13141683), (9, 10221309), (21, 4380561), (27, 3407103), (63, 1460187), (81, 1135701), (189, 486729), (243, 378567), (567, 162243), (729, 126189), (1701, 54081), (2003, 45927), (2187, 42063), (5103, 18027), (6009, 15309), (6561, 14021)]