21252385

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{55201}}^1$

素因数の和:55224

約数の個数: 16

約数和(自身を含む): 31796352

約数和(自身を除く): 10543967

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 55201, 276005, 386407, 607211, 1932035, 3036055, 4250477, 21252385]

約数ペア:

[(1, 21252385), (5, 4250477), (7, 3036055), (11, 1932035), (35, 607211), (55, 386407), (77, 276005), (385, 55201)]