21082878

素因数分解:

$2^1\times 3^2\times {\mathrm{131}}^1\times {\mathrm{8941}}^1$

素因数の和:9080

約数の個数: 24

約数和(自身を含む): 46033416

約数和(自身を除く): 24950538

約数列:

[1, 2, 3, 6, 9, 18, 131, 262, 393, 786, 1179, 2358, 8941, 17882, 26823, 53646, 80469, 160938, 1171271, 2342542, 3513813, 7027626, 10541439, 21082878]

約数ペア:

[(1, 21082878), (2, 10541439), (3, 7027626), (6, 3513813), (9, 2342542), (18, 1171271), (131, 160938), (262, 80469), (393, 53646), (786, 26823), (1179, 17882), (2358, 8941)]