21156157

素因数分解:

${\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{151}}^1\times {\mathrm{271}}^1$

素因数の和:480

約数の個数: 16

約数和(自身を含む): 23814144

約数和(自身を除く): 2657987

約数列:

[1, 11, 47, 151, 271, 517, 1661, 2981, 7097, 12737, 40921, 78067, 140107, 450131, 1923287, 21156157]

約数ペア:

[(1, 21156157), (11, 1923287), (47, 450131), (151, 140107), (271, 78067), (517, 40921), (1661, 12737), (2981, 7097)]