28021521

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{36919}}^1$

素因数の和:36956

約数の個数: 16

約数和(自身を含む): 42531840

約数和(自身を除く): 14510319

約数列:

[1, 3, 11, 23, 33, 69, 253, 759, 36919, 110757, 406109, 849137, 1218327, 2547411, 9340507, 28021521]

約数ペア:

[(1, 28021521), (3, 9340507), (11, 2547411), (23, 1218327), (33, 849137), (69, 406109), (253, 110757), (759, 36919)]