20826105

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{81671}}^1$

素因数の和:81696

約数の個数: 16

約数和(自身を含む): 35282304

約数和(自身を除く): 14456199

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 81671, 245013, 408355, 1225065, 1388407, 4165221, 6942035, 20826105]

約数ペア:

[(1, 20826105), (3, 6942035), (5, 4165221), (15, 1388407), (17, 1225065), (51, 408355), (85, 245013), (255, 81671)]