21880492855

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19801351}}^1$

素因数の和:19801386

約数の個数: 16

約数和(自身を含む): 29939644224

約数和(自身を除く): 8059151369

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 19801351, 99006755, 257417563, 336622967, 1287087815, 1683114835, 4376098571, 21880492855]

約数ペア:

[(1, 21880492855), (5, 4376098571), (13, 1683114835), (17, 1287087815), (65, 336622967), (85, 257417563), (221, 99006755), (1105, 19801351)]