21166768

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{11117}}^1$

素因数の和:11149

約数の個数: 40

約数和(自身を含む): 49630752

約数和(自身を除く): 28463984

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 112, 119, 136, 238, 272, 476, 952, 1904, 11117, 22234, 44468, 77819, 88936, 155638, 177872, 188989, 311276, 377978, 622552, 755956, 1245104, 1322923, 1511912, 2645846, 3023824, 5291692, 10583384, 21166768]

約数ペア:

[(1, 21166768), (2, 10583384), (4, 5291692), (7, 3023824), (8, 2645846), (14, 1511912), (16, 1322923), (17, 1245104), (28, 755956), (34, 622552), (56, 377978), (68, 311276), (112, 188989), (119, 177872), (136, 155638), (238, 88936), (272, 77819), (476, 44468), (952, 22234), (1904, 11117)]