20168887683

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{15744643}}^1$

素因数の和:15744714

約数の個数: 16

約数和(自身を含む): 31237373696

約数和(自身を除く): 11068486013

約数列:

[1, 3, 7, 21, 61, 183, 427, 1281, 15744643, 47233929, 110212501, 330637503, 960423223, 2881269669, 6722962561, 20168887683]

約数ペア:

[(1, 20168887683), (3, 6722962561), (7, 2881269669), (21, 960423223), (61, 330637503), (183, 110212501), (427, 47233929), (1281, 15744643)]