205072317

素因数分解:

$3^5\times {\mathrm{53}}^1\times {\mathrm{15923}}^1$

素因数の和:15991

約数の個数: 24

約数和(自身を含む): 313002144

約数和(自身を除く): 107929827

約数列:

[1, 3, 9, 27, 53, 81, 159, 243, 477, 1431, 4293, 12879, 15923, 47769, 143307, 429921, 843919, 1289763, 2531757, 3869289, 7595271, 22785813, 68357439, 205072317]

約数ペア:

[(1, 205072317), (3, 68357439), (9, 22785813), (27, 7595271), (53, 3869289), (81, 2531757), (159, 1289763), (243, 843919), (477, 429921), (1431, 143307), (4293, 47769), (12879, 15923)]