2639428

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{269}}^1$

素因数の和:507

約数の個数: 24

約数和(自身を含む): 5080320

約数和(自身を除く): 2440892

約数列:

[1, 2, 4, 11, 22, 44, 223, 269, 446, 538, 892, 1076, 2453, 2959, 4906, 5918, 9812, 11836, 59987, 119974, 239948, 659857, 1319714, 2639428]

約数ペア:

[(1, 2639428), (2, 1319714), (4, 659857), (11, 239948), (22, 119974), (44, 59987), (223, 11836), (269, 9812), (446, 5918), (538, 4906), (892, 2959), (1076, 2453)]