16840467

素因数分解:

$3^4\times 7^2\times {\mathrm{4243}}^1$

素因数の和:4269

約数の個数: 30

約数和(自身を含む): 29270868

約数和(自身を除く): 12430401

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 4243, 12729, 29701, 38187, 89103, 114561, 207907, 267309, 343683, 623721, 801927, 1871163, 2405781, 5613489, 16840467]

約数ペア:

[(1, 16840467), (3, 5613489), (7, 2405781), (9, 1871163), (21, 801927), (27, 623721), (49, 343683), (63, 267309), (81, 207907), (147, 114561), (189, 89103), (441, 38187), (567, 29701), (1323, 12729), (3969, 4243)]