19444887

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1$

素因数の和:273

約数の個数: 64

約数和(自身を含む): 36864000

約数和(自身を除く): 17419113

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 47, 63, 77, 99, 141, 189, 199, 231, 297, 329, 423, 517, 597, 693, 987, 1269, 1393, 1551, 1791, 2079, 2189, 2961, 3619, 4179, 4653, 5373, 6567, 8883, 9353, 10857, 12537, 13959, 15323, 19701, 28059, 32571, 37611, 45969, 59103, 65471, 84177, 97713, 102883, 137907, 196413, 252531, 308649, 413721, 589239, 720181, 925947, 1767717, 2160543, 2777841, 6481629, 19444887]

約数ペア:

[(1, 19444887), (3, 6481629), (7, 2777841), (9, 2160543), (11, 1767717), (21, 925947), (27, 720181), (33, 589239), (47, 413721), (63, 308649), (77, 252531), (99, 196413), (141, 137907), (189, 102883), (199, 97713), (231, 84177), (297, 65471), (329, 59103), (423, 45969), (517, 37611), (597, 32571), (693, 28059), (987, 19701), (1269, 15323), (1393, 13959), (1551, 12537), (1791, 10857), (2079, 9353), (2189, 8883), (2961, 6567), (3619, 5373), (4179, 4653)]