199985989

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{263}}^1\times {\mathrm{4723}}^1$

素因数の和:5016

約数の個数: 16

約数和(自身を含む): 239450112

約数和(自身を除く): 39464123

約数列:

[1, 7, 23, 161, 263, 1841, 4723, 6049, 33061, 42343, 108629, 760403, 1242149, 8695043, 28569427, 199985989]

約数ペア:

[(1, 199985989), (7, 28569427), (23, 8695043), (161, 1242149), (263, 760403), (1841, 108629), (4723, 42343), (6049, 33061)]