21389304

素因数分解:

$2^3\times 3^1\times {\mathrm{307}}^1\times {\mathrm{2903}}^1$

素因数の和:3219

約数の個数: 32

約数和(自身を含む): 53665920

約数和(自身を除く): 32276616

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 307, 614, 921, 1228, 1842, 2456, 2903, 3684, 5806, 7368, 8709, 11612, 17418, 23224, 34836, 69672, 891221, 1782442, 2673663, 3564884, 5347326, 7129768, 10694652, 21389304]

約数ペア:

[(1, 21389304), (2, 10694652), (3, 7129768), (4, 5347326), (6, 3564884), (8, 2673663), (12, 1782442), (24, 891221), (307, 69672), (614, 34836), (921, 23224), (1228, 17418), (1842, 11612), (2456, 8709), (2903, 7368), (3684, 5806)]