20490038

素因数分解:

$2^1\times {\mathrm{109}}^1\times {\mathrm{193}}^1\times {\mathrm{487}}^1$

素因数の和:791

約数の個数: 16

約数和(自身を含む): 31241760

約数和(自身を除く): 10751722

約数列:

[1, 2, 109, 193, 218, 386, 487, 974, 21037, 42074, 53083, 93991, 106166, 187982, 10245019, 20490038]

約数ペア:

[(1, 20490038), (2, 10245019), (109, 187982), (193, 106166), (218, 93991), (386, 53083), (487, 42074), (974, 21037)]