20684825

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{6221}}^1$

素因数の和:6257

約数の個数: 24

約数和(自身を含む): 30861120

約数和(自身を除く): 10176295

約数列:

[1, 5, 7, 19, 25, 35, 95, 133, 175, 475, 665, 3325, 6221, 31105, 43547, 118199, 155525, 217735, 590995, 827393, 1088675, 2954975, 4136965, 20684825]

約数ペア:

[(1, 20684825), (5, 4136965), (7, 2954975), (19, 1088675), (25, 827393), (35, 590995), (95, 217735), (133, 155525), (175, 118199), (475, 43547), (665, 31105), (3325, 6221)]