21282305

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{8233}}^1$

素因数の和:8296

約数の個数: 16

約数和(自身を含む): 28456704

約数和(自身を除く): 7174399

約数列:

[1, 5, 11, 47, 55, 235, 517, 2585, 8233, 41165, 90563, 386951, 452815, 1934755, 4256461, 21282305]

約数ペア:

[(1, 21282305), (5, 4256461), (11, 1934755), (47, 452815), (55, 386951), (235, 90563), (517, 41165), (2585, 8233)]