21453861

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1163}}^1$

素因数の和:1233

約数の個数: 32

約数和(自身を含む): 34417152

約数和(自身を除く): 12963291

約数列:

[1, 3, 11, 13, 33, 39, 43, 129, 143, 429, 473, 559, 1163, 1419, 1677, 3489, 6149, 12793, 15119, 18447, 38379, 45357, 50009, 150027, 166309, 498927, 550099, 650117, 1650297, 1950351, 7151287, 21453861]

約数ペア:

[(1, 21453861), (3, 7151287), (11, 1950351), (13, 1650297), (33, 650117), (39, 550099), (43, 498927), (129, 166309), (143, 150027), (429, 50009), (473, 45357), (559, 38379), (1163, 18447), (1419, 15119), (1677, 12793), (3489, 6149)]