19943420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{142453}}^1$

素因数の和:142469

約数の個数: 24

約数和(自身を含む): 47864544

約数和(自身を除く): 27921124

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 142453, 284906, 569812, 712265, 997171, 1424530, 1994342, 2849060, 3988684, 4985855, 9971710, 19943420]

約数ペア:

[(1, 19943420), (2, 9971710), (4, 4985855), (5, 3988684), (7, 2849060), (10, 1994342), (14, 1424530), (20, 997171), (28, 712265), (35, 569812), (70, 284906), (140, 142453)]