21000753326

素因数分解:

$2^1\times 7^1\times {\mathrm{9661}}^1\times {\mathrm{155269}}^1$

素因数の和:164939

約数の個数: 16

約数和(自身を含む): 36005249760

約数和(自身を除く): 15004496434

約数列:

[1, 2, 7, 14, 9661, 19322, 67627, 135254, 155269, 310538, 1086883, 2173766, 1500053809, 3000107618, 10500376663, 21000753326]

約数ペア:

[(1, 21000753326), (2, 10500376663), (7, 3000107618), (14, 1500053809), (9661, 2173766), (19322, 1086883), (67627, 310538), (135254, 155269)]