16890290

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{27689}}^1$

素因数の和:27757

約数の個数: 16

約数和(自身を含む): 30902040

約数和(自身を除く): 14011750

約数列:

[1, 2, 5, 10, 61, 122, 305, 610, 27689, 55378, 138445, 276890, 1689029, 3378058, 8445145, 16890290]

約数ペア:

[(1, 16890290), (2, 8445145), (5, 3378058), (10, 1689029), (61, 276890), (122, 138445), (305, 55378), (610, 27689)]