18816441

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{6737}}^1$

素因数の和:6773

約数の個数: 24

約数和(自身を含む): 30725280

約数和(自身を除く): 11908839

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 6737, 20211, 47159, 128003, 141477, 330113, 384009, 896021, 990339, 2688063, 6272147, 18816441]

約数ペア:

[(1, 18816441), (3, 6272147), (7, 2688063), (19, 990339), (21, 896021), (49, 384009), (57, 330113), (133, 141477), (147, 128003), (399, 47159), (931, 20211), (2793, 6737)]