21171328

素因数分解:

$2^7\times {\mathrm{193}}^1\times {\mathrm{857}}^1$

素因数の和:1064

約数の個数: 32

約数和(自身を含む): 42445260

約数和(自身を除く): 21273932

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 193, 386, 772, 857, 1544, 1714, 3088, 3428, 6176, 6856, 12352, 13712, 24704, 27424, 54848, 109696, 165401, 330802, 661604, 1323208, 2646416, 5292832, 10585664, 21171328]

約数ペア:

[(1, 21171328), (2, 10585664), (4, 5292832), (8, 2646416), (16, 1323208), (32, 661604), (64, 330802), (128, 165401), (193, 109696), (386, 54848), (772, 27424), (857, 24704), (1544, 13712), (1714, 12352), (3088, 6856), (3428, 6176)]