21698446

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{12809}}^1$

素因数の和:12840

約数の個数: 24

約数和(自身を含む): 40889520

約数和(自身を除く): 19191074

約数列:

[1, 2, 7, 11, 14, 22, 77, 121, 154, 242, 847, 1694, 12809, 25618, 89663, 140899, 179326, 281798, 986293, 1549889, 1972586, 3099778, 10849223, 21698446]

約数ペア:

[(1, 21698446), (2, 10849223), (7, 3099778), (11, 1972586), (14, 1549889), (22, 986293), (77, 281798), (121, 179326), (154, 140899), (242, 89663), (847, 25618), (1694, 12809)]