18242553

素因数分解:

$3^1\times 7^2\times {\mathrm{193}}^1\times {\mathrm{643}}^1$

素因数の和:853

約数の個数: 24

約数和(自身を含む): 28485408

約数和(自身を除く): 10242855

約数列:

[1, 3, 7, 21, 49, 147, 193, 579, 643, 1351, 1929, 4053, 4501, 9457, 13503, 28371, 31507, 94521, 124099, 372297, 868693, 2606079, 6080851, 18242553]

約数ペア:

[(1, 18242553), (3, 6080851), (7, 2606079), (21, 868693), (49, 372297), (147, 124099), (193, 94521), (579, 31507), (643, 28371), (1351, 13503), (1929, 9457), (4053, 4501)]