21005394

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{152213}}^1$

素因数の和:152241

約数の個数: 16

約数和(自身を含む): 43837632

約数和(自身を除く): 22832238

約数列:

[1, 2, 3, 6, 23, 46, 69, 138, 152213, 304426, 456639, 913278, 3500899, 7001798, 10502697, 21005394]

約数ペア:

[(1, 21005394), (2, 10502697), (3, 7001798), (6, 3500899), (23, 913278), (46, 456639), (69, 304426), (138, 152213)]