217897788

素因数分解:

$2^2\times 3^1\times {\mathrm{157}}^1\times {\mathrm{115657}}^1$

素因数の和:115821

約数の個数: 24

約数和(自身を含む): 511670992

約数和(自身を除く): 293773204

約数列:

[1, 2, 3, 4, 6, 12, 157, 314, 471, 628, 942, 1884, 115657, 231314, 346971, 462628, 693942, 1387884, 18158149, 36316298, 54474447, 72632596, 108948894, 217897788]

約数ペア:

[(1, 217897788), (2, 108948894), (3, 72632596), (4, 54474447), (6, 36316298), (12, 18158149), (157, 1387884), (314, 693942), (471, 462628), (628, 346971), (942, 231314), (1884, 115657)]