19509994

素因数分解:

$2^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{10973}}^1$

素因数の和:11109

約数の個数: 16

約数和(自身を含む): 33712128

約数和(自身を除く): 14202134

約数列:

[1, 2, 7, 14, 127, 254, 889, 1778, 10973, 21946, 76811, 153622, 1393571, 2787142, 9754997, 19509994]

約数ペア:

[(1, 19509994), (2, 9754997), (7, 2787142), (14, 1393571), (127, 153622), (254, 76811), (889, 21946), (1778, 10973)]