19690146

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^2$

素因数の和:188

約数の個数: 72

約数和(自身を含む): 51048192

約数和(自身を除く): 31358046

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 31, 42, 62, 63, 71, 93, 126, 142, 186, 213, 217, 279, 426, 434, 497, 558, 639, 651, 994, 1278, 1302, 1491, 1953, 2201, 2982, 3906, 4402, 4473, 5041, 6603, 8946, 10082, 13206, 15123, 15407, 19809, 30246, 30814, 35287, 39618, 45369, 46221, 70574, 90738, 92442, 105861, 138663, 156271, 211722, 277326, 312542, 317583, 468813, 635166, 937626, 1093897, 1406439, 2187794, 2812878, 3281691, 6563382, 9845073, 19690146]

約数ペア:

[(1, 19690146), (2, 9845073), (3, 6563382), (6, 3281691), (7, 2812878), (9, 2187794), (14, 1406439), (18, 1093897), (21, 937626), (31, 635166), (42, 468813), (62, 317583), (63, 312542), (71, 277326), (93, 211722), (126, 156271), (142, 138663), (186, 105861), (213, 92442), (217, 90738), (279, 70574), (426, 46221), (434, 45369), (497, 39618), (558, 35287), (639, 30814), (651, 30246), (994, 19809), (1278, 15407), (1302, 15123), (1491, 13206), (1953, 10082), (2201, 8946), (2982, 6603), (3906, 5041), (4402, 4473)]