19917718

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{4583}}^1$

素因数の和:4679

約数の個数: 16

約数和(自身を含む): 31189536

約数和(自身を除く): 11271818

約数列:

[1, 2, 41, 53, 82, 106, 2173, 4346, 4583, 9166, 187903, 242899, 375806, 485798, 9958859, 19917718]

約数ペア:

[(1, 19917718), (2, 9958859), (41, 485798), (53, 375806), (82, 242899), (106, 187903), (2173, 9166), (4346, 4583)]