21889978

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{349}}^1\times {\mathrm{2851}}^1$

素因数の和:3213

約数の個数: 16

約数和(自身を含む): 35935200

約数和(自身を除く): 14045222

約数列:

[1, 2, 11, 22, 349, 698, 2851, 3839, 5702, 7678, 31361, 62722, 994999, 1989998, 10944989, 21889978]

約数ペア:

[(1, 21889978), (2, 10944989), (11, 1989998), (22, 994999), (349, 62722), (698, 31361), (2851, 7678), (3839, 5702)]