21406605

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{129737}}^1$

素因数の和:129756

約数の個数: 16

約数和(自身を含む): 37364544

約数和(自身を除く): 15957939

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 129737, 389211, 648685, 1427107, 1946055, 4281321, 7135535, 21406605]

約数ペア:

[(1, 21406605), (3, 7135535), (5, 4281321), (11, 1946055), (15, 1427107), (33, 648685), (55, 389211), (165, 129737)]