978021

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1$

素因数の和:146

約数の個数: 32

約数和(自身を含む): 1641600

約数和(自身を除く): 663579

約数列:

[1, 3, 9, 11, 27, 33, 37, 89, 99, 111, 267, 297, 333, 407, 801, 979, 999, 1221, 2403, 2937, 3293, 3663, 8811, 9879, 10989, 26433, 29637, 36223, 88911, 108669, 326007, 978021]

約数ペア:

[(1, 978021), (3, 326007), (9, 108669), (11, 88911), (27, 36223), (33, 29637), (37, 26433), (89, 10989), (99, 9879), (111, 8811), (267, 3663), (297, 3293), (333, 2937), (407, 2403), (801, 1221), (979, 999)]