19913004

素因数分解:

$2^2\times 3^2\times {\mathrm{553139}}^1$

素因数の和:553149

約数の個数: 18

約数和(自身を含む): 50335740

約数和(自身を除く): 30422736

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 553139, 1106278, 1659417, 2212556, 3318834, 4978251, 6637668, 9956502, 19913004]

約数ペア:

[(1, 19913004), (2, 9956502), (3, 6637668), (4, 4978251), (6, 3318834), (9, 2212556), (12, 1659417), (18, 1106278), (36, 553139)]