21008848

素因数分解:

$2^4\times 7^2\times {\mathrm{127}}^1\times {\mathrm{211}}^1$

素因数の和:360

約数の個数: 60

約数和(自身を含む): 47949312

約数和(自身を除く): 26940464

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 127, 196, 211, 254, 392, 422, 508, 784, 844, 889, 1016, 1477, 1688, 1778, 2032, 2954, 3376, 3556, 5908, 6223, 7112, 10339, 11816, 12446, 14224, 20678, 23632, 24892, 26797, 41356, 49784, 53594, 82712, 99568, 107188, 165424, 187579, 214376, 375158, 428752, 750316, 1313053, 1500632, 2626106, 3001264, 5252212, 10504424, 21008848]

約数ペア:

[(1, 21008848), (2, 10504424), (4, 5252212), (7, 3001264), (8, 2626106), (14, 1500632), (16, 1313053), (28, 750316), (49, 428752), (56, 375158), (98, 214376), (112, 187579), (127, 165424), (196, 107188), (211, 99568), (254, 82712), (392, 53594), (422, 49784), (508, 41356), (784, 26797), (844, 24892), (889, 23632), (1016, 20678), (1477, 14224), (1688, 12446), (1778, 11816), (2032, 10339), (2954, 7112), (3376, 6223), (3556, 5908)]