18590854

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{239}}^1$

素因数の和:372

約数の個数: 32

約数和(自身を含む): 31104000

約数和(自身を除く): 12513146

約数列:

[1, 2, 19, 23, 38, 46, 89, 178, 239, 437, 478, 874, 1691, 2047, 3382, 4094, 4541, 5497, 9082, 10994, 21271, 38893, 42542, 77786, 104443, 208886, 404149, 489233, 808298, 978466, 9295427, 18590854]

約数ペア:

[(1, 18590854), (2, 9295427), (19, 978466), (23, 808298), (38, 489233), (46, 404149), (89, 208886), (178, 104443), (239, 77786), (437, 42542), (478, 38893), (874, 21271), (1691, 10994), (2047, 9082), (3382, 5497), (4094, 4541)]