21210494

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{401}}^1\times {\mathrm{499}}^1$

素因数の和:955

約数の個数: 16

約数和(自身を含む): 32562000

約数和(自身を除く): 11351506

約数列:

[1, 2, 53, 106, 401, 499, 802, 998, 21253, 26447, 42506, 52894, 200099, 400198, 10605247, 21210494]

約数ペア:

[(1, 21210494), (2, 10605247), (53, 400198), (106, 200099), (401, 52894), (499, 42506), (802, 26447), (998, 21253)]