27998404

素因数分解:

$2^2\times 7^3\times {\mathrm{20407}}^1$

素因数の和:20432

約数の個数: 24

約数和(自身を含む): 57142400

約数和(自身を除く): 29143996

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 686, 1372, 20407, 40814, 81628, 142849, 285698, 571396, 999943, 1999886, 3999772, 6999601, 13999202, 27998404]

約数ペア:

[(1, 27998404), (2, 13999202), (4, 6999601), (7, 3999772), (14, 1999886), (28, 999943), (49, 571396), (98, 285698), (196, 142849), (343, 81628), (686, 40814), (1372, 20407)]