21728373

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{389}}^1\times {\mathrm{433}}^1$

素因数の和:868

約数の個数: 16

約数和(自身を含む): 29789760

約数和(自身を除く): 8061387

約数列:

[1, 3, 43, 129, 389, 433, 1167, 1299, 16727, 18619, 50181, 55857, 168437, 505311, 7242791, 21728373]

約数ペア:

[(1, 21728373), (3, 7242791), (43, 505311), (129, 168437), (389, 55857), (433, 50181), (1167, 18619), (1299, 16727)]