19663353

素因数分解:

$3^2\times {\mathrm{73}}^1\times {\mathrm{173}}^2$

素因数の和:425

約数の個数: 18

約数和(自身を含む): 28959086

約数和(自身を除く): 9295733

約数列:

[1, 3, 9, 73, 173, 219, 519, 657, 1557, 12629, 29929, 37887, 89787, 113661, 269361, 2184817, 6554451, 19663353]

約数ペア:

[(1, 19663353), (3, 6554451), (9, 2184817), (73, 269361), (173, 113661), (219, 89787), (519, 37887), (657, 29929), (1557, 12629)]