21122584

素因数分解:

$2^3\times 7^1\times {\mathrm{347}}^1\times {\mathrm{1087}}^1$

素因数の和:1447

約数の個数: 32

約数和(自身を含む): 45434880

約数和(自身を除く): 24312296

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 347, 694, 1087, 1388, 2174, 2429, 2776, 4348, 4858, 7609, 8696, 9716, 15218, 19432, 30436, 60872, 377189, 754378, 1508756, 2640323, 3017512, 5280646, 10561292, 21122584]

約数ペア:

[(1, 21122584), (2, 10561292), (4, 5280646), (7, 3017512), (8, 2640323), (14, 1508756), (28, 754378), (56, 377189), (347, 60872), (694, 30436), (1087, 19432), (1388, 15218), (2174, 9716), (2429, 8696), (2776, 7609), (4348, 4858)]