13921243

素因数分解:

$7^2\times {\mathrm{19}}^2\times {\mathrm{787}}^1$

素因数の和:839

約数の個数: 18

約数和(自身を含む): 17112996

約数和(自身を除く): 3191753

約数列:

[1, 7, 19, 49, 133, 361, 787, 931, 2527, 5509, 14953, 17689, 38563, 104671, 284107, 732697, 1988749, 13921243]

約数ペア:

[(1, 13921243), (7, 1988749), (19, 732697), (49, 284107), (133, 104671), (361, 38563), (787, 17689), (931, 14953), (2527, 5509)]