2556994

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1637}}^1$

素因数の和:1721

約数の個数: 16

約数和(自身を含む): 4245696

約数和(自身を除く): 1688702

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 1637, 3274, 18007, 36014, 116227, 232454, 1278497, 2556994]

約数ペア:

[(1, 2556994), (2, 1278497), (11, 232454), (22, 116227), (71, 36014), (142, 18007), (781, 3274), (1562, 1637)]