16781982

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{399571}}^1$

素因数の和:399583

約数の個数: 16

約数和(自身を含む): 38358912

約数和(自身を除く): 21576930

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 399571, 799142, 1198713, 2397426, 2796997, 5593994, 8390991, 16781982]

約数ペア:

[(1, 16781982), (2, 8390991), (3, 5593994), (6, 2796997), (7, 2397426), (14, 1198713), (21, 799142), (42, 399571)]