21995046

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{881}}^1$

素因数の和:981

約数の個数: 48

約数和(自身を含む): 50909040

約数和(自身を除く): 28913994

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 73, 114, 146, 171, 219, 342, 438, 657, 881, 1314, 1387, 1762, 2643, 2774, 4161, 5286, 7929, 8322, 12483, 15858, 16739, 24966, 33478, 50217, 64313, 100434, 128626, 150651, 192939, 301302, 385878, 578817, 1157634, 1221947, 2443894, 3665841, 7331682, 10997523, 21995046]

約数ペア:

[(1, 21995046), (2, 10997523), (3, 7331682), (6, 3665841), (9, 2443894), (18, 1221947), (19, 1157634), (38, 578817), (57, 385878), (73, 301302), (114, 192939), (146, 150651), (171, 128626), (219, 100434), (342, 64313), (438, 50217), (657, 33478), (881, 24966), (1314, 16739), (1387, 15858), (1762, 12483), (2643, 8322), (2774, 7929), (4161, 5286)]