201886979

素因数分解:

$7^1\times {\mathrm{197}}^1\times {\mathrm{281}}^1\times {\mathrm{521}}^1$

素因数の和:1006

約数の個数: 16

約数和(自身を含む): 233171136

約数和(自身を除く): 31284157

約数列:

[1, 7, 197, 281, 521, 1379, 1967, 3647, 55357, 102637, 146401, 387499, 718459, 1024807, 28840997, 201886979]

約数ペア:

[(1, 201886979), (7, 28840997), (197, 1024807), (281, 718459), (521, 387499), (1379, 146401), (1967, 102637), (3647, 55357)]