21558392

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{86929}}^1$

素因数の和:86966

約数の個数: 16

約数和(自身を含む): 41726400

約数和(自身を除く): 20168008

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 86929, 173858, 347716, 695432, 2694799, 5389598, 10779196, 21558392]

約数ペア:

[(1, 21558392), (2, 10779196), (4, 5389598), (8, 2694799), (31, 695432), (62, 347716), (124, 173858), (248, 86929)]