21110902

素因数分解:

$2^1\times {\mathrm{109}}^1\times {\mathrm{179}}^1\times {\mathrm{541}}^1$

素因数の和:831

約数の個数: 16

約数和(自身を含む): 32194800

約数和(自身を除く): 11083898

約数列:

[1, 2, 109, 179, 218, 358, 541, 1082, 19511, 39022, 58969, 96839, 117938, 193678, 10555451, 21110902]

約数ペア:

[(1, 21110902), (2, 10555451), (109, 193678), (179, 117938), (218, 96839), (358, 58969), (541, 39022), (1082, 19511)]