199921198

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{31267}}^1$

素因数の和:31431

約数の個数: 16

約数和(自身を含む): 315181440

約数和(自身を除く): 115260242

約数列:

[1, 2, 23, 46, 139, 278, 3197, 6394, 31267, 62534, 719141, 1438282, 4346113, 8692226, 99960599, 199921198]

約数ペア:

[(1, 199921198), (2, 99960599), (23, 8692226), (46, 4346113), (139, 1438282), (278, 719141), (3197, 62534), (6394, 31267)]