20706175

素因数分解:

$5^2\times 7^2\times {\mathrm{16903}}^1$

素因数の和:16927

約数の個数: 18

約数和(自身を含む): 29869368

約数和(自身を除く): 9163193

約数列:

[1, 5, 7, 25, 35, 49, 175, 245, 1225, 16903, 84515, 118321, 422575, 591605, 828247, 2958025, 4141235, 20706175]

約数ペア:

[(1, 20706175), (5, 4141235), (7, 2958025), (25, 828247), (35, 591605), (49, 422575), (175, 118321), (245, 84515), (1225, 16903)]