18639213

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1\times {\mathrm{811}}^1$

素因数の和:1024

約数の個数: 16

約数和(自身を含む): 25568256

約数和(自身を除く): 6929043

約数列:

[1, 3, 47, 141, 163, 489, 811, 2433, 7661, 22983, 38117, 114351, 132193, 396579, 6213071, 18639213]

約数ペア:

[(1, 18639213), (3, 6213071), (47, 396579), (141, 132193), (163, 114351), (489, 38117), (811, 22983), (2433, 7661)]