21054295

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{1559}}^1$

素因数の和:1674

約数の個数: 16

約数和(自身を含む): 26320320

約数和(自身を除く): 5266025

約数列:

[1, 5, 37, 73, 185, 365, 1559, 2701, 7795, 13505, 57683, 113807, 288415, 569035, 4210859, 21054295]

約数ペア:

[(1, 21054295), (5, 4210859), (37, 569035), (73, 288415), (185, 113807), (365, 57683), (1559, 13505), (2701, 7795)]