19018486

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{1999}}^1$

素因数の和:2139

約数の個数: 16

約数和(自身を含む): 29376000

約数和(自身を除く): 10357514

約数列:

[1, 2, 67, 71, 134, 142, 1999, 3998, 4757, 9514, 133933, 141929, 267866, 283858, 9509243, 19018486]

約数ペア:

[(1, 19018486), (2, 9509243), (67, 283858), (71, 267866), (134, 141929), (142, 133933), (1999, 9514), (3998, 4757)]