21019694

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{3361}}^1$

素因数の和:3475

約数の個数: 16

約数和(自身を含む): 32678640

約数和(自身を除く): 11658946

約数列:

[1, 2, 53, 59, 106, 118, 3127, 3361, 6254, 6722, 178133, 198299, 356266, 396598, 10509847, 21019694]

約数ペア:

[(1, 21019694), (2, 10509847), (53, 396598), (59, 356266), (106, 198299), (118, 178133), (3127, 6722), (3361, 6254)]