19970384

素因数分解:

$2^4\times 7^1\times {\mathrm{178307}}^1$

素因数の和:178322

約数の個数: 20

約数和(自身を含む): 44220384

約数和(自身を除く): 24250000

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 178307, 356614, 713228, 1248149, 1426456, 2496298, 2852912, 4992596, 9985192, 19970384]

約数ペア:

[(1, 19970384), (2, 9985192), (4, 4992596), (7, 2852912), (8, 2496298), (14, 1426456), (16, 1248149), (28, 713228), (56, 356614), (112, 178307)]