20678105

素因数分解:

$5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{2999}}^1$

素因数の和:3208

約数の個数: 16

約数和(自身を含む): 28512000

約数和(自身を除く): 7833895

約数列:

[1, 5, 7, 35, 197, 985, 1379, 2999, 6895, 14995, 20993, 104965, 590803, 2954015, 4135621, 20678105]

約数ペア:

[(1, 20678105), (5, 4135621), (7, 2954015), (35, 590803), (197, 104965), (985, 20993), (1379, 14995), (2999, 6895)]