20396404

素因数分解:

$2^2\times 7^1\times {\mathrm{227}}^1\times {\mathrm{3209}}^1$

素因数の和:3447

約数の個数: 24

約数和(自身を含む): 40985280

約数和(自身を除く): 20588876

約数列:

[1, 2, 4, 7, 14, 28, 227, 454, 908, 1589, 3178, 3209, 6356, 6418, 12836, 22463, 44926, 89852, 728443, 1456886, 2913772, 5099101, 10198202, 20396404]

約数ペア:

[(1, 20396404), (2, 10198202), (4, 5099101), (7, 2913772), (14, 1456886), (28, 728443), (227, 89852), (454, 44926), (908, 22463), (1589, 12836), (3178, 6418), (3209, 6356)]