21077705

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{22543}}^1$

素因数の和:22576

約数の個数: 16

約数和(自身を含む): 29217024

約数和(自身を除く): 8139319

約数列:

[1, 5, 11, 17, 55, 85, 187, 935, 22543, 112715, 247973, 383231, 1239865, 1916155, 4215541, 21077705]

約数ペア:

[(1, 21077705), (5, 4215541), (11, 1916155), (17, 1239865), (55, 383231), (85, 247973), (187, 112715), (935, 22543)]