64397809

素因数分解:

$7^2\times {\mathrm{53}}^1\times {\mathrm{137}}^1\times {\mathrm{181}}^1$

素因数の和:385

約数の個数: 24

約数和(自身を含む): 77307048

約数和(自身を除く): 12909239

約数列:

[1, 7, 49, 53, 137, 181, 371, 959, 1267, 2597, 6713, 7261, 8869, 9593, 24797, 50827, 67151, 173579, 355789, 470057, 1215053, 1314241, 9199687, 64397809]

約数ペア:

[(1, 64397809), (7, 9199687), (49, 1314241), (53, 1215053), (137, 470057), (181, 355789), (371, 173579), (959, 67151), (1267, 50827), (2597, 24797), (6713, 9593), (7261, 8869)]