20639296

素因数分解:

$2^6\times {\mathrm{197}}^1\times {\mathrm{1637}}^1$

素因数の和:1846

約数の個数: 28

約数和(自身を含む): 41189148

約数和(自身を除く): 20549852

約数列:

[1, 2, 4, 8, 16, 32, 64, 197, 394, 788, 1576, 1637, 3152, 3274, 6304, 6548, 12608, 13096, 26192, 52384, 104768, 322489, 644978, 1289956, 2579912, 5159824, 10319648, 20639296]

約数ペア:

[(1, 20639296), (2, 10319648), (4, 5159824), (8, 2579912), (16, 1289956), (32, 644978), (64, 322489), (197, 104768), (394, 52384), (788, 26192), (1576, 13096), (1637, 12608), (3152, 6548), (3274, 6304)]