18369729

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{6781}}^1$

素因数の和:6837

約数の個数: 24

約数和(自身を含む): 31034432

約数和(自身を除く): 12664703

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 6781, 20343, 47467, 61029, 142401, 291583, 427203, 874749, 2041081, 2624247, 6123243, 18369729]

約数ペア:

[(1, 18369729), (3, 6123243), (7, 2624247), (9, 2041081), (21, 874749), (43, 427203), (63, 291583), (129, 142401), (301, 61029), (387, 47467), (903, 20343), (2709, 6781)]