19978154

素因数分解:

$2^1\times 7^1\times {\mathrm{503}}^1\times {\mathrm{2837}}^1$

素因数の和:3349

約数の個数: 16

約数和(自身を含む): 34328448

約数和(自身を除く): 14350294

約数列:

[1, 2, 7, 14, 503, 1006, 2837, 3521, 5674, 7042, 19859, 39718, 1427011, 2854022, 9989077, 19978154]

約数ペア:

[(1, 19978154), (2, 9989077), (7, 2854022), (14, 1427011), (503, 39718), (1006, 19859), (2837, 7042), (3521, 5674)]