19855854

素因数分解:

$2^1\times 3^4\times {\mathrm{23}}^1\times {\mathrm{73}}^2$

素因数の和:183

約数の個数: 60

約数和(自身を含む): 47070936

約数和(自身を除く): 27215082

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 46, 54, 69, 73, 81, 138, 146, 162, 207, 219, 414, 438, 621, 657, 1242, 1314, 1679, 1863, 1971, 3358, 3726, 3942, 5037, 5329, 5913, 10074, 10658, 11826, 15111, 15987, 30222, 31974, 45333, 47961, 90666, 95922, 122567, 135999, 143883, 245134, 271998, 287766, 367701, 431649, 735402, 863298, 1103103, 2206206, 3309309, 6618618, 9927927, 19855854]

約数ペア:

[(1, 19855854), (2, 9927927), (3, 6618618), (6, 3309309), (9, 2206206), (18, 1103103), (23, 863298), (27, 735402), (46, 431649), (54, 367701), (69, 287766), (73, 271998), (81, 245134), (138, 143883), (146, 135999), (162, 122567), (207, 95922), (219, 90666), (414, 47961), (438, 45333), (621, 31974), (657, 30222), (1242, 15987), (1314, 15111), (1679, 11826), (1863, 10658), (1971, 10074), (3358, 5913), (3726, 5329), (3942, 5037)]