21382228

素因数分解:

$2^2\times 7^2\times {\mathrm{127}}^1\times {\mathrm{859}}^1$

素因数の和:1004

約数の個数: 36

約数和(自身を含む): 43921920

約数和(自身を除く): 22539692

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 127, 196, 254, 508, 859, 889, 1718, 1778, 3436, 3556, 6013, 6223, 12026, 12446, 24052, 24892, 42091, 84182, 109093, 168364, 218186, 436372, 763651, 1527302, 3054604, 5345557, 10691114, 21382228]

約数ペア:

[(1, 21382228), (2, 10691114), (4, 5345557), (7, 3054604), (14, 1527302), (28, 763651), (49, 436372), (98, 218186), (127, 168364), (196, 109093), (254, 84182), (508, 42091), (859, 24892), (889, 24052), (1718, 12446), (1778, 12026), (3436, 6223), (3556, 6013)]