20875285

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{211}}^1\times {\mathrm{421}}^1$

素因数の和:684

約数の個数: 16

約数和(自身を含む): 25765632

約数和(自身を除く): 4890347

約数列:

[1, 5, 47, 211, 235, 421, 1055, 2105, 9917, 19787, 49585, 88831, 98935, 444155, 4175057, 20875285]

約数ペア:

[(1, 20875285), (5, 4175057), (47, 444155), (211, 98935), (235, 88831), (421, 49585), (1055, 19787), (2105, 9917)]