209519394

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{712651}}^1$

素因数の和:712670

約数の個数: 24

約数和(自身を含む): 487453968

約数和(自身を除く): 277934574

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 294, 712651, 1425302, 2137953, 4275906, 4988557, 9977114, 14965671, 29931342, 34919899, 69839798, 104759697, 209519394]

約数ペア:

[(1, 209519394), (2, 104759697), (3, 69839798), (6, 34919899), (7, 29931342), (14, 14965671), (21, 9977114), (42, 4988557), (49, 4275906), (98, 2137953), (147, 1425302), (294, 712651)]