19403874

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{71}}^1\times {\mathrm{241}}^1$

素因数の和:333

約数の個数: 80

約数和(自身を含む): 50599296

約数和(自身を除く): 31195422

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 71, 81, 126, 142, 162, 189, 213, 241, 378, 426, 482, 497, 567, 639, 723, 994, 1134, 1278, 1446, 1491, 1687, 1917, 2169, 2982, 3374, 3834, 4338, 4473, 5061, 5751, 6507, 8946, 10122, 11502, 13014, 13419, 15183, 17111, 19521, 26838, 30366, 34222, 39042, 40257, 45549, 51333, 80514, 91098, 102666, 119777, 136647, 153999, 239554, 273294, 307998, 359331, 461997, 718662, 923994, 1077993, 1385991, 2155986, 2771982, 3233979, 6467958, 9701937, 19403874]

約数ペア:

[(1, 19403874), (2, 9701937), (3, 6467958), (6, 3233979), (7, 2771982), (9, 2155986), (14, 1385991), (18, 1077993), (21, 923994), (27, 718662), (42, 461997), (54, 359331), (63, 307998), (71, 273294), (81, 239554), (126, 153999), (142, 136647), (162, 119777), (189, 102666), (213, 91098), (241, 80514), (378, 51333), (426, 45549), (482, 40257), (497, 39042), (567, 34222), (639, 30366), (723, 26838), (994, 19521), (1134, 17111), (1278, 15183), (1446, 13419), (1491, 13014), (1687, 11502), (1917, 10122), (2169, 8946), (2982, 6507), (3374, 5751), (3834, 5061), (4338, 4473)]