21000658218

素因数分解:

$2^1\times 3^1\times {\mathrm{491}}^1\times {\mathrm{7128533}}^1$

素因数の和:7129029

約数の個数: 16

約数和(自身を含む): 42086864736

約数和(自身を除く): 21086206518

約数列:

[1, 2, 3, 6, 491, 982, 1473, 2946, 7128533, 14257066, 21385599, 42771198, 3500109703, 7000219406, 10500329109, 21000658218]

約数ペア:

[(1, 21000658218), (2, 10500329109), (3, 7000219406), (6, 3500109703), (491, 42771198), (982, 21385599), (1473, 14257066), (2946, 7128533)]