19681868

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{263}}^1\times {\mathrm{353}}^1$

素因数の和:673

約数の個数: 24

約数和(自身を含む): 35326368

約数和(自身を除く): 15644500

約数列:

[1, 2, 4, 53, 106, 212, 263, 353, 526, 706, 1052, 1412, 13939, 18709, 27878, 37418, 55756, 74836, 92839, 185678, 371356, 4920467, 9840934, 19681868]

約数ペア:

[(1, 19681868), (2, 9840934), (4, 4920467), (53, 371356), (106, 185678), (212, 92839), (263, 74836), (353, 55756), (526, 37418), (706, 27878), (1052, 18709), (1412, 13939)]