21641943

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{1321}}^1$

素因数の和:1494

約数の個数: 16

約数和(自身を含む): 29782016

約数和(自身を除く): 8140073

約数列:

[1, 3, 43, 127, 129, 381, 1321, 3963, 5461, 16383, 56803, 167767, 170409, 503301, 7213981, 21641943]

約数ペア:

[(1, 21641943), (3, 7213981), (43, 503301), (127, 170409), (129, 167767), (381, 56803), (1321, 16383), (3963, 5461)]