21264069

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{239}}^1\times {\mathrm{631}}^1$

素因数の和:920

約数の個数: 16

約数和(自身を含む): 29122560

約数和(自身を除く): 7858491

約数列:

[1, 3, 47, 141, 239, 631, 717, 1893, 11233, 29657, 33699, 88971, 150809, 452427, 7088023, 21264069]

約数ペア:

[(1, 21264069), (3, 7088023), (47, 452427), (141, 150809), (239, 88971), (631, 33699), (717, 29657), (1893, 11233)]