20517245

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{30853}}^1$

素因数の和:30884

約数の個数: 16

約数和(自身を含む): 29619840

約数和(自身を除く): 9102595

約数列:

[1, 5, 7, 19, 35, 95, 133, 665, 30853, 154265, 215971, 586207, 1079855, 2931035, 4103449, 20517245]

約数ペア:

[(1, 20517245), (5, 4103449), (7, 2931035), (19, 1079855), (35, 586207), (95, 215971), (133, 154265), (665, 30853)]