18664546

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:258

約数の個数: 32

約数和(自身を含む): 30481920

約数和(自身を除く): 11817374

約数列:

[1, 2, 23, 46, 47, 89, 94, 97, 178, 194, 1081, 2047, 2162, 2231, 4094, 4183, 4462, 4559, 8366, 8633, 9118, 17266, 96209, 104857, 192418, 198559, 209714, 397118, 405751, 811502, 9332273, 18664546]

約数ペア:

[(1, 18664546), (2, 9332273), (23, 811502), (46, 405751), (47, 397118), (89, 209714), (94, 198559), (97, 192418), (178, 104857), (194, 96209), (1081, 17266), (2047, 9118), (2162, 8633), (2231, 8366), (4094, 4559), (4183, 4462)]