19900566

素因数分解:

$2^1\times 3^4\times 7^2\times {\mathrm{23}}^1\times {\mathrm{109}}^1$

素因数の和:160

約数の個数: 120

約数和(自身を含む): 54624240

約数和(自身を除く): 34723674

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 23, 27, 42, 46, 49, 54, 63, 69, 81, 98, 109, 126, 138, 147, 161, 162, 189, 207, 218, 294, 322, 327, 378, 414, 441, 483, 567, 621, 654, 763, 882, 966, 981, 1127, 1134, 1242, 1323, 1449, 1526, 1863, 1962, 2254, 2289, 2507, 2646, 2898, 2943, 3381, 3726, 3969, 4347, 4578, 5014, 5341, 5886, 6762, 6867, 7521, 7938, 8694, 8829, 10143, 10682, 13041, 13734, 15042, 16023, 17549, 17658, 20286, 20601, 22563, 26082, 30429, 32046, 35098, 41202, 45126, 48069, 52647, 60858, 61803, 67689, 91287, 96138, 105294, 122843, 123606, 135378, 144207, 157941, 182574, 203067, 245686, 288414, 315882, 368529, 406134, 432621, 473823, 737058, 865242, 947646, 1105587, 1421469, 2211174, 2842938, 3316761, 6633522, 9950283, 19900566]

約数ペア:

[(1, 19900566), (2, 9950283), (3, 6633522), (6, 3316761), (7, 2842938), (9, 2211174), (14, 1421469), (18, 1105587), (21, 947646), (23, 865242), (27, 737058), (42, 473823), (46, 432621), (49, 406134), (54, 368529), (63, 315882), (69, 288414), (81, 245686), (98, 203067), (109, 182574), (126, 157941), (138, 144207), (147, 135378), (161, 123606), (162, 122843), (189, 105294), (207, 96138), (218, 91287), (294, 67689), (322, 61803), (327, 60858), (378, 52647), (414, 48069), (441, 45126), (483, 41202), (567, 35098), (621, 32046), (654, 30429), (763, 26082), (882, 22563), (966, 20601), (981, 20286), (1127, 17658), (1134, 17549), (1242, 16023), (1323, 15042), (1449, 13734), (1526, 13041), (1863, 10682), (1962, 10143), (2254, 8829), (2289, 8694), (2507, 7938), (2646, 7521), (2898, 6867), (2943, 6762), (3381, 5886), (3726, 5341), (3969, 5014), (4347, 4578)]