21700741456

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{197}}^1\times {\mathrm{129901}}^1$

素因数の和:130159

約数の個数: 40

約数和(自身を含む): 43056277704

約数和(自身を除く): 21355536248

約数列:

[1, 2, 4, 8, 16, 53, 106, 197, 212, 394, 424, 788, 848, 1576, 3152, 10441, 20882, 41764, 83528, 129901, 167056, 259802, 519604, 1039208, 2078416, 6884753, 13769506, 25590497, 27539012, 51180994, 55078024, 102361988, 110156048, 204723976, 409447952, 1356296341, 2712592682, 5425185364, 10850370728, 21700741456]

約数ペア:

[(1, 21700741456), (2, 10850370728), (4, 5425185364), (8, 2712592682), (16, 1356296341), (53, 409447952), (106, 204723976), (197, 110156048), (212, 102361988), (394, 55078024), (424, 51180994), (788, 27539012), (848, 25590497), (1576, 13769506), (3152, 6884753), (10441, 2078416), (20882, 1039208), (41764, 519604), (83528, 259802), (129901, 167056)]