21489392

素因数分解:

$2^4\times {\mathrm{193}}^1\times {\mathrm{6959}}^1$

素因数の和:7160

約数の個数: 20

約数和(自身を含む): 41857440

約数和(自身を除く): 20368048

約数列:

[1, 2, 4, 8, 16, 193, 386, 772, 1544, 3088, 6959, 13918, 27836, 55672, 111344, 1343087, 2686174, 5372348, 10744696, 21489392]

約数ペア:

[(1, 21489392), (2, 10744696), (4, 5372348), (8, 2686174), (16, 1343087), (193, 111344), (386, 55672), (772, 27836), (1544, 13918), (3088, 6959)]