19984272

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{5407}}^1$

素因数の和:5436

約数の個数: 80

約数和(自身を含む): 64376832

約数和(自身を除く): 44392560

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 16, 21, 22, 24, 28, 33, 42, 44, 48, 56, 66, 77, 84, 88, 112, 132, 154, 168, 176, 231, 264, 308, 336, 462, 528, 616, 924, 1232, 1848, 3696, 5407, 10814, 16221, 21628, 32442, 37849, 43256, 59477, 64884, 75698, 86512, 113547, 118954, 129768, 151396, 178431, 227094, 237908, 259536, 302792, 356862, 416339, 454188, 475816, 605584, 713724, 832678, 908376, 951632, 1249017, 1427448, 1665356, 1816752, 2498034, 2854896, 3330712, 4996068, 6661424, 9992136, 19984272]

約数ペア:

[(1, 19984272), (2, 9992136), (3, 6661424), (4, 4996068), (6, 3330712), (7, 2854896), (8, 2498034), (11, 1816752), (12, 1665356), (14, 1427448), (16, 1249017), (21, 951632), (22, 908376), (24, 832678), (28, 713724), (33, 605584), (42, 475816), (44, 454188), (48, 416339), (56, 356862), (66, 302792), (77, 259536), (84, 237908), (88, 227094), (112, 178431), (132, 151396), (154, 129768), (168, 118954), (176, 113547), (231, 86512), (264, 75698), (308, 64884), (336, 59477), (462, 43256), (528, 37849), (616, 32442), (924, 21628), (1232, 16221), (1848, 10814), (3696, 5407)]