21616573

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1987}}^1$

素因数の和:2064

約数の個数: 16

約数和(自身を含む): 25191936

約数和(自身を除く): 3575363

約数列:

[1, 11, 23, 43, 253, 473, 989, 1987, 10879, 21857, 45701, 85441, 502711, 939851, 1965143, 21616573]

約数ペア:

[(1, 21616573), (11, 1965143), (23, 939851), (43, 502711), (253, 85441), (473, 45701), (989, 21857), (1987, 10879)]