19978424

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{131437}}^1$

素因数の和:131462

約数の個数: 16

約数和(自身を含む): 39431400

約数和(自身を除く): 19452976

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 131437, 262874, 525748, 1051496, 2497303, 4994606, 9989212, 19978424]

約数ペア:

[(1, 19978424), (2, 9989212), (4, 4994606), (8, 2497303), (19, 1051496), (38, 525748), (76, 262874), (152, 131437)]