19201908

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1$

素因数の和:277

約数の個数: 96

約数和(自身を含む): 53222400

約数和(自身を除く): 34020492

約数列:

[1, 2, 3, 4, 6, 11, 12, 17, 22, 33, 34, 43, 44, 51, 66, 68, 86, 102, 129, 132, 172, 187, 199, 204, 258, 374, 398, 473, 516, 561, 597, 731, 748, 796, 946, 1122, 1194, 1419, 1462, 1892, 2189, 2193, 2244, 2388, 2838, 2924, 3383, 4378, 4386, 5676, 6567, 6766, 8041, 8557, 8756, 8772, 10149, 13134, 13532, 16082, 17114, 20298, 24123, 25671, 26268, 32164, 34228, 37213, 40596, 48246, 51342, 74426, 94127, 96492, 102684, 111639, 145469, 148852, 188254, 223278, 282381, 290938, 376508, 436407, 446556, 564762, 581876, 872814, 1129524, 1600159, 1745628, 3200318, 4800477, 6400636, 9600954, 19201908]

約数ペア:

[(1, 19201908), (2, 9600954), (3, 6400636), (4, 4800477), (6, 3200318), (11, 1745628), (12, 1600159), (17, 1129524), (22, 872814), (33, 581876), (34, 564762), (43, 446556), (44, 436407), (51, 376508), (66, 290938), (68, 282381), (86, 223278), (102, 188254), (129, 148852), (132, 145469), (172, 111639), (187, 102684), (199, 96492), (204, 94127), (258, 74426), (374, 51342), (398, 48246), (473, 40596), (516, 37213), (561, 34228), (597, 32164), (731, 26268), (748, 25671), (796, 24123), (946, 20298), (1122, 17114), (1194, 16082), (1419, 13532), (1462, 13134), (1892, 10149), (2189, 8772), (2193, 8756), (2244, 8557), (2388, 8041), (2838, 6766), (2924, 6567), (3383, 5676), (4378, 4386)]