221620504

素因数分解:

$2^3\times 7^1\times {\mathrm{3957509}}^1$

素因数の和:3957522

約数の個数: 16

約数和(自身を含む): 474901200

約数和(自身を除く): 253280696

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 3957509, 7915018, 15830036, 27702563, 31660072, 55405126, 110810252, 221620504]

約数ペア:

[(1, 221620504), (2, 110810252), (4, 55405126), (7, 31660072), (8, 27702563), (14, 15830036), (28, 7915018), (56, 3957509)]