19777456

素因数分解:

$2^4\times {\mathrm{127}}^1\times {\mathrm{9733}}^1$

素因数の和:9868

約数の個数: 20

約数和(自身を含む): 38624512

約数和(自身を除く): 18847056

約数列:

[1, 2, 4, 8, 16, 127, 254, 508, 1016, 2032, 9733, 19466, 38932, 77864, 155728, 1236091, 2472182, 4944364, 9888728, 19777456]

約数ペア:

[(1, 19777456), (2, 9888728), (4, 4944364), (8, 2472182), (16, 1236091), (127, 155728), (254, 77864), (508, 38932), (1016, 19466), (2032, 9733)]