20761568

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{20929}}^1$

素因数の和:20970

約数の個数: 24

約数和(自身を含む): 42194880

約数和(自身を除く): 21433312

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 124, 248, 496, 992, 20929, 41858, 83716, 167432, 334864, 648799, 669728, 1297598, 2595196, 5190392, 10380784, 20761568]

約数ペア:

[(1, 20761568), (2, 10380784), (4, 5190392), (8, 2595196), (16, 1297598), (31, 669728), (32, 648799), (62, 334864), (124, 167432), (248, 83716), (496, 41858), (992, 20929)]