20924965

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{991}}^1$

素因数の和:1140

約数の個数: 16

約数和(自身を含む): 25998336

約数和(自身を除く): 5073371

約数列:

[1, 5, 41, 103, 205, 515, 991, 4223, 4955, 21115, 40631, 102073, 203155, 510365, 4184993, 20924965]

約数ペア:

[(1, 20924965), (5, 4184993), (41, 510365), (103, 203155), (205, 102073), (515, 40631), (991, 21115), (4223, 4955)]