81871146

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{649771}}^1$

素因数の和:649786

約数の個数: 24

約数和(自身を含む): 202728864

約数和(自身を除く): 120857718

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 649771, 1299542, 1949313, 3898626, 4548397, 5847939, 9096794, 11695878, 13645191, 27290382, 40935573, 81871146]

約数ペア:

[(1, 81871146), (2, 40935573), (3, 27290382), (6, 13645191), (7, 11695878), (9, 9096794), (14, 5847939), (18, 4548397), (21, 3898626), (42, 1949313), (63, 1299542), (126, 649771)]