221163971

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{15541}}^1$

素因数の和:15674

約数の個数: 16

約数和(自身を含む): 268565760

約数和(自身を除く): 47401789

約数列:

[1, 7, 19, 107, 133, 749, 2033, 14231, 15541, 108787, 295279, 1662887, 2066953, 11640209, 31594853, 221163971]

約数ペア:

[(1, 221163971), (7, 31594853), (19, 11640209), (107, 2066953), (133, 1662887), (749, 295279), (2033, 108787), (14231, 15541)]