19944574

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{643}}^1\times {\mathrm{1193}}^1$

素因数の和:1851

約数の個数: 16

約数和(自身を含む): 32295312

約数和(自身を除く): 12350738

約数列:

[1, 2, 13, 26, 643, 1193, 1286, 2386, 8359, 15509, 16718, 31018, 767099, 1534198, 9972287, 19944574]

約数ペア:

[(1, 19944574), (2, 9972287), (13, 1534198), (26, 767099), (643, 31018), (1193, 16718), (1286, 15509), (2386, 8359)]