21704170

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{52937}}^1$

素因数の和:52985

約数の個数: 16

約数和(自身を含む): 40021128

約数和(自身を除く): 18316958

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 52937, 105874, 264685, 529370, 2170417, 4340834, 10852085, 21704170]

約数ペア:

[(1, 21704170), (2, 10852085), (5, 4340834), (10, 2170417), (41, 529370), (82, 264685), (205, 105874), (410, 52937)]