217874789

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{8999}}^1$

素因数の和:9112

約数の個数: 16

約数和(自身を含む): 248832000

約数和(自身を除く): 30957211

約数列:

[1, 11, 31, 71, 341, 781, 2201, 8999, 24211, 98989, 278969, 638929, 3068659, 7028219, 19806799, 217874789]

約数ペア:

[(1, 217874789), (11, 19806799), (31, 7028219), (71, 3068659), (341, 638929), (781, 278969), (2201, 98989), (8999, 24211)]