18784612

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{859}}^1$

素因数の和:952

約数の個数: 48

約数和(自身を含む): 41610240

約数和(自身を除く): 22825628

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 71, 77, 142, 154, 284, 308, 497, 781, 859, 994, 1562, 1718, 1988, 3124, 3436, 5467, 6013, 9449, 10934, 12026, 18898, 21868, 24052, 37796, 60989, 66143, 121978, 132286, 243956, 264572, 426923, 670879, 853846, 1341758, 1707692, 2683516, 4696153, 9392306, 18784612]

約数ペア:

[(1, 18784612), (2, 9392306), (4, 4696153), (7, 2683516), (11, 1707692), (14, 1341758), (22, 853846), (28, 670879), (44, 426923), (71, 264572), (77, 243956), (142, 132286), (154, 121978), (284, 66143), (308, 60989), (497, 37796), (781, 24052), (859, 21868), (994, 18898), (1562, 12026), (1718, 10934), (1988, 9449), (3124, 6013), (3436, 5467)]