21167804

素因数分解:

$2^2\times 7^2\times {\mathrm{107999}}^1$

素因数の和:108017

約数の個数: 18

約数和(自身を含む): 43092000

約数和(自身を除く): 21924196

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 107999, 215998, 431996, 755993, 1511986, 3023972, 5291951, 10583902, 21167804]

約数ペア:

[(1, 21167804), (2, 10583902), (4, 5291951), (7, 3023972), (14, 1511986), (28, 755993), (49, 431996), (98, 215998), (196, 107999)]