18318645

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{9467}}^1$

素因数の和:9521

約数の個数: 24

約数和(自身を含む): 32494176

約数和(自身を除く): 14175531

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 9467, 28401, 47335, 85203, 142005, 407081, 426015, 1221243, 2035405, 3663729, 6106215, 18318645]

約数ペア:

[(1, 18318645), (3, 6106215), (5, 3663729), (9, 2035405), (15, 1221243), (43, 426015), (45, 407081), (129, 142005), (215, 85203), (387, 47335), (645, 28401), (1935, 9467)]