18939256

素因数分解:

$2^3\times 7^1\times {\mathrm{127}}^1\times {\mathrm{2663}}^1$

素因数の和:2803

約数の個数: 32

約数和(自身を含む): 40919040

約数和(自身を除く): 21979784

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 127, 254, 508, 889, 1016, 1778, 2663, 3556, 5326, 7112, 10652, 18641, 21304, 37282, 74564, 149128, 338201, 676402, 1352804, 2367407, 2705608, 4734814, 9469628, 18939256]

約数ペア:

[(1, 18939256), (2, 9469628), (4, 4734814), (7, 2705608), (8, 2367407), (14, 1352804), (28, 676402), (56, 338201), (127, 149128), (254, 74564), (508, 37282), (889, 21304), (1016, 18641), (1778, 10652), (2663, 7112), (3556, 5326)]