21386052

素因数分解:

$2^2\times 3^3\times {\mathrm{71}}^1\times {\mathrm{2789}}^1$

素因数の和:2873

約数の個数: 48

約数和(自身を含む): 56246400

約数和(自身を除く): 34860348

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 71, 108, 142, 213, 284, 426, 639, 852, 1278, 1917, 2556, 2789, 3834, 5578, 7668, 8367, 11156, 16734, 25101, 33468, 50202, 75303, 100404, 150606, 198019, 301212, 396038, 594057, 792076, 1188114, 1782171, 2376228, 3564342, 5346513, 7128684, 10693026, 21386052]

約数ペア:

[(1, 21386052), (2, 10693026), (3, 7128684), (4, 5346513), (6, 3564342), (9, 2376228), (12, 1782171), (18, 1188114), (27, 792076), (36, 594057), (54, 396038), (71, 301212), (108, 198019), (142, 150606), (213, 100404), (284, 75303), (426, 50202), (639, 33468), (852, 25101), (1278, 16734), (1917, 11156), (2556, 8367), (2789, 7668), (3834, 5578)]