19856728

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{311}}^1\times {\mathrm{347}}^1$

素因数の和:687

約数の個数: 32

約数和(自身を含む): 39087360

約数和(自身を除く): 19230632

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 311, 347, 622, 694, 1244, 1388, 2488, 2776, 7153, 7981, 14306, 15962, 28612, 31924, 57224, 63848, 107917, 215834, 431668, 863336, 2482091, 4964182, 9928364, 19856728]

約数ペア:

[(1, 19856728), (2, 9928364), (4, 4964182), (8, 2482091), (23, 863336), (46, 431668), (92, 215834), (184, 107917), (311, 63848), (347, 57224), (622, 31924), (694, 28612), (1244, 15962), (1388, 14306), (2488, 7981), (2776, 7153)]