21801558

素因数分解:

$2^1\times 3^1\times {\mathrm{643}}^1\times {\mathrm{5651}}^1$

素因数の和:6299

約数の個数: 16

約数和(自身を含む): 43678656

約数和(自身を除く): 21877098

約数列:

[1, 2, 3, 6, 643, 1286, 1929, 3858, 5651, 11302, 16953, 33906, 3633593, 7267186, 10900779, 21801558]

約数ペア:

[(1, 21801558), (2, 10900779), (3, 7267186), (6, 3633593), (643, 33906), (1286, 16953), (1929, 11302), (3858, 5651)]