208221639

素因数分解:

$3^1\times {\mathrm{353}}^2\times {\mathrm{557}}^1$

素因数の和:1266

約数の個数: 12

約数和(自身を含む): 278917416

約数和(自身を除く): 70695777

約数列:

[1, 3, 353, 557, 1059, 1671, 124609, 196621, 373827, 589863, 69407213, 208221639]

約数ペア:

[(1, 208221639), (3, 69407213), (353, 589863), (557, 373827), (1059, 196621), (1671, 124609)]