19914808

素因数分解:

$2^3\times {\mathrm{139}}^1\times {\mathrm{17909}}^1$

素因数の和:18054

約数の個数: 16

約数和(自身を含む): 37611000

約数和(自身を除く): 17696192

約数列:

[1, 2, 4, 8, 139, 278, 556, 1112, 17909, 35818, 71636, 143272, 2489351, 4978702, 9957404, 19914808]

約数ペア:

[(1, 19914808), (2, 9957404), (4, 4978702), (8, 2489351), (139, 143272), (278, 71636), (556, 35818), (1112, 17909)]