198984989

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{641}}^1\times {\mathrm{727}}^1$

素因数の和:1436

約数の個数: 16

約数和(自身を含む): 231818496

約数和(自身を除く): 32833507

約数列:

[1, 7, 61, 427, 641, 727, 4487, 5089, 39101, 44347, 273707, 310429, 466007, 3262049, 28426427, 198984989]

約数ペア:

[(1, 198984989), (7, 28426427), (61, 3262049), (427, 466007), (641, 310429), (727, 273707), (4487, 44347), (5089, 39101)]