217564191

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{619841}}^1$

素因数の和:619863

約数の個数: 16

約数和(自身を含む): 347111520

約数和(自身を除く): 129547329

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 619841, 1859523, 5578569, 8057933, 16735707, 24173799, 72521397, 217564191]

約数ペア:

[(1, 217564191), (3, 72521397), (9, 24173799), (13, 16735707), (27, 8057933), (39, 5578569), (117, 1859523), (351, 619841)]