209830986

素因数分解:

$2^1\times 3^6\times {\mathrm{71}}^1\times {\mathrm{2027}}^1$

素因数の和:2118

約数の個数: 56

約数和(自身を含む): 478786464

約数和(自身を除く): 268955478

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 71, 81, 142, 162, 213, 243, 426, 486, 639, 729, 1278, 1458, 1917, 2027, 3834, 4054, 5751, 6081, 11502, 12162, 17253, 18243, 34506, 36486, 51759, 54729, 103518, 109458, 143917, 164187, 287834, 328374, 431751, 492561, 863502, 985122, 1295253, 1477683, 2590506, 2955366, 3885759, 7771518, 11657277, 23314554, 34971831, 69943662, 104915493, 209830986]

約数ペア:

[(1, 209830986), (2, 104915493), (3, 69943662), (6, 34971831), (9, 23314554), (18, 11657277), (27, 7771518), (54, 3885759), (71, 2955366), (81, 2590506), (142, 1477683), (162, 1295253), (213, 985122), (243, 863502), (426, 492561), (486, 431751), (639, 328374), (729, 287834), (1278, 164187), (1458, 143917), (1917, 109458), (2027, 103518), (3834, 54729), (4054, 51759), (5751, 36486), (6081, 34506), (11502, 18243), (12162, 17253)]