21555878

素因数分解:

$2^1\times {\mathrm{73}}^1\times {\mathrm{191}}^1\times {\mathrm{773}}^1$

素因数の和:1039

約数の個数: 16

約数和(自身を含む): 32990976

約数和(自身を除く): 11435098

約数列:

[1, 2, 73, 146, 191, 382, 773, 1546, 13943, 27886, 56429, 112858, 147643, 295286, 10777939, 21555878]

約数ペア:

[(1, 21555878), (2, 10777939), (73, 295286), (146, 147643), (191, 112858), (382, 56429), (773, 27886), (1546, 13943)]