21241737

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1933}}^1$

素因数の和:1990

約数の個数: 32

約数和(自身を含む): 35276160

約数和(自身を除く): 14034423

約数列:

[1, 3, 9, 11, 27, 33, 37, 99, 111, 297, 333, 407, 999, 1221, 1933, 3663, 5799, 10989, 17397, 21263, 52191, 63789, 71521, 191367, 214563, 574101, 643689, 786731, 1931067, 2360193, 7080579, 21241737]

約数ペア:

[(1, 21241737), (3, 7080579), (9, 2360193), (11, 1931067), (27, 786731), (33, 643689), (37, 574101), (99, 214563), (111, 191367), (297, 71521), (333, 63789), (407, 52191), (999, 21263), (1221, 17397), (1933, 10989), (3663, 5799)]