209214978

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{4981309}}^1$

素因数の和:4981321

約数の個数: 16

約数和(自身を含む): 478205760

約数和(自身を除く): 268990782

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 4981309, 9962618, 14943927, 29887854, 34869163, 69738326, 104607489, 209214978]

約数ペア:

[(1, 209214978), (2, 104607489), (3, 69738326), (6, 34869163), (7, 29887854), (14, 14943927), (21, 9962618), (42, 4981309)]