21257124

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{701}}^1$

素因数の和:753

約数の個数: 72

約数和(自身を含む): 59911488

約数和(自身を除く): 38654364

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 19, 21, 28, 38, 42, 57, 76, 84, 114, 133, 228, 266, 361, 399, 532, 701, 722, 798, 1083, 1402, 1444, 1596, 2103, 2166, 2527, 2804, 4206, 4332, 4907, 5054, 7581, 8412, 9814, 10108, 13319, 14721, 15162, 19628, 26638, 29442, 30324, 39957, 53276, 58884, 79914, 93233, 159828, 186466, 253061, 279699, 372932, 506122, 559398, 759183, 1012244, 1118796, 1518366, 1771427, 3036732, 3542854, 5314281, 7085708, 10628562, 21257124]

約数ペア:

[(1, 21257124), (2, 10628562), (3, 7085708), (4, 5314281), (6, 3542854), (7, 3036732), (12, 1771427), (14, 1518366), (19, 1118796), (21, 1012244), (28, 759183), (38, 559398), (42, 506122), (57, 372932), (76, 279699), (84, 253061), (114, 186466), (133, 159828), (228, 93233), (266, 79914), (361, 58884), (399, 53276), (532, 39957), (701, 30324), (722, 29442), (798, 26638), (1083, 19628), (1402, 15162), (1444, 14721), (1596, 13319), (2103, 10108), (2166, 9814), (2527, 8412), (2804, 7581), (4206, 5054), (4332, 4907)]