19993072

素因数分解:

$2^4\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{449}}^1$

素因数の和:502

約数の個数: 60

約数和(自身を含む): 44528400

約数和(自身を除く): 24535328

約数列:

[1, 2, 4, 8, 11, 16, 22, 23, 44, 46, 88, 92, 121, 176, 184, 242, 253, 368, 449, 484, 506, 898, 968, 1012, 1796, 1936, 2024, 2783, 3592, 4048, 4939, 5566, 7184, 9878, 10327, 11132, 19756, 20654, 22264, 39512, 41308, 44528, 54329, 79024, 82616, 108658, 113597, 165232, 217316, 227194, 434632, 454388, 869264, 908776, 1249567, 1817552, 2499134, 4998268, 9996536, 19993072]

約数ペア:

[(1, 19993072), (2, 9996536), (4, 4998268), (8, 2499134), (11, 1817552), (16, 1249567), (22, 908776), (23, 869264), (44, 454388), (46, 434632), (88, 227194), (92, 217316), (121, 165232), (176, 113597), (184, 108658), (242, 82616), (253, 79024), (368, 54329), (449, 44528), (484, 41308), (506, 39512), (898, 22264), (968, 20654), (1012, 19756), (1796, 11132), (1936, 10327), (2024, 9878), (2783, 7184), (3592, 5566), (4048, 4939)]