21913085

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{3631}}^1$

素因数の和:3724

約数の個数: 16

約数和(自身を含む): 28242432

約数和(自身を除く): 6329347

約数列:

[1, 5, 17, 71, 85, 355, 1207, 3631, 6035, 18155, 61727, 257801, 308635, 1289005, 4382617, 21913085]

約数ペア:

[(1, 21913085), (5, 4382617), (17, 1289005), (71, 308635), (85, 257801), (355, 61727), (1207, 18155), (3631, 6035)]