19882548

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{257}}^1\times {\mathrm{307}}^1$

素因数の和:581

約数の個数: 72

約数和(自身を含む): 57849792

約数和(自身を除く): 37967244

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 257, 307, 514, 614, 771, 921, 1028, 1228, 1542, 1799, 1842, 2149, 2313, 2763, 3084, 3598, 3684, 4298, 4626, 5397, 5526, 6447, 7196, 8596, 9252, 10794, 11052, 12894, 16191, 19341, 21588, 25788, 32382, 38682, 64764, 77364, 78899, 157798, 236697, 315596, 473394, 552293, 710091, 946788, 1104586, 1420182, 1656879, 2209172, 2840364, 3313758, 4970637, 6627516, 9941274, 19882548]

約数ペア:

[(1, 19882548), (2, 9941274), (3, 6627516), (4, 4970637), (6, 3313758), (7, 2840364), (9, 2209172), (12, 1656879), (14, 1420182), (18, 1104586), (21, 946788), (28, 710091), (36, 552293), (42, 473394), (63, 315596), (84, 236697), (126, 157798), (252, 78899), (257, 77364), (307, 64764), (514, 38682), (614, 32382), (771, 25788), (921, 21588), (1028, 19341), (1228, 16191), (1542, 12894), (1799, 11052), (1842, 10794), (2149, 9252), (2313, 8596), (2763, 7196), (3084, 6447), (3598, 5526), (3684, 5397), (4298, 4626)]