18258987

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{409}}^1\times {\mathrm{647}}^1$

素因数の和:1082

約数の個数: 16

約数和(自身を含む): 25505280

約数和(自身を除く): 7246293

約数列:

[1, 3, 23, 69, 409, 647, 1227, 1941, 9407, 14881, 28221, 44643, 264623, 793869, 6086329, 18258987]

約数ペア:

[(1, 18258987), (3, 6086329), (23, 793869), (69, 264623), (409, 44643), (647, 28221), (1227, 14881), (1941, 9407)]