19018188

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{163}}^1\times {\mathrm{463}}^1$

素因数の和:643

約数の個数: 72

約数和(自身を含む): 55397888

約数和(自身を除く): 36379700

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 163, 252, 326, 463, 489, 652, 926, 978, 1141, 1389, 1467, 1852, 1956, 2282, 2778, 2934, 3241, 3423, 4167, 4564, 5556, 5868, 6482, 6846, 8334, 9723, 10269, 12964, 13692, 16668, 19446, 20538, 29169, 38892, 41076, 58338, 75469, 116676, 150938, 226407, 301876, 452814, 528283, 679221, 905628, 1056566, 1358442, 1584849, 2113132, 2716884, 3169698, 4754547, 6339396, 9509094, 19018188]

約数ペア:

[(1, 19018188), (2, 9509094), (3, 6339396), (4, 4754547), (6, 3169698), (7, 2716884), (9, 2113132), (12, 1584849), (14, 1358442), (18, 1056566), (21, 905628), (28, 679221), (36, 528283), (42, 452814), (63, 301876), (84, 226407), (126, 150938), (163, 116676), (252, 75469), (326, 58338), (463, 41076), (489, 38892), (652, 29169), (926, 20538), (978, 19446), (1141, 16668), (1389, 13692), (1467, 12964), (1852, 10269), (1956, 9723), (2282, 8334), (2778, 6846), (2934, 6482), (3241, 5868), (3423, 5556), (4167, 4564)]