21953104

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{9871}}^1$

素因数の和:10018

約数の個数: 20

約数和(自身を含む): 42844480

約数和(自身を除く): 20891376

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 9871, 19742, 39484, 78968, 157936, 1372069, 2744138, 5488276, 10976552, 21953104]

約数ペア:

[(1, 21953104), (2, 10976552), (4, 5488276), (8, 2744138), (16, 1372069), (139, 157936), (278, 78968), (556, 39484), (1112, 19742), (2224, 9871)]