209213990

素因数分解:

$2^1\times 5^1\times {\mathrm{1069}}^1\times {\mathrm{19571}}^1$

素因数の和:20647

約数の個数: 16

約数和(自身を含む): 376956720

約数和(自身を除く): 167742730

約数列:

[1, 2, 5, 10, 1069, 2138, 5345, 10690, 19571, 39142, 97855, 195710, 20921399, 41842798, 104606995, 209213990]

約数ペア:

[(1, 209213990), (2, 104606995), (5, 41842798), (10, 20921399), (1069, 195710), (2138, 97855), (5345, 39142), (10690, 19571)]