21039656

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{239087}}^1$

素因数の和:239104

約数の個数: 16

約数和(自身を含む): 43035840

約数和(自身を除く): 21996184

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 239087, 478174, 956348, 1912696, 2629957, 5259914, 10519828, 21039656]

約数ペア:

[(1, 21039656), (2, 10519828), (4, 5259914), (8, 2629957), (11, 1912696), (22, 956348), (44, 478174), (88, 239087)]