209985195

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{1999859}}^1$

素因数の和:1999874

約数の個数: 16

約数和(自身を含む): 383973120

約数和(自身を除く): 173987925

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 1999859, 5999577, 9999295, 13999013, 29997885, 41997039, 69995065, 209985195]

約数ペア:

[(1, 209985195), (3, 69995065), (5, 41997039), (7, 29997885), (15, 13999013), (21, 9999295), (35, 5999577), (105, 1999859)]