21187494

素因数分解:

$2^1\times 3^4\times {\mathrm{130787}}^1$

素因数の和:130801

約数の個数: 20

約数和(自身を含む): 47476044

約数和(自身を除く): 26288550

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 130787, 261574, 392361, 784722, 1177083, 2354166, 3531249, 7062498, 10593747, 21187494]

約数ペア:

[(1, 21187494), (2, 10593747), (3, 7062498), (6, 3531249), (9, 2354166), (18, 1177083), (27, 784722), (54, 392361), (81, 261574), (162, 130787)]