21648268

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{431}}^1\times {\mathrm{433}}^1$

素因数の和:897

約数の個数: 24

約数和(自身を含む): 39372480

約数和(自身を除く): 17724212

約数列:

[1, 2, 4, 29, 58, 116, 431, 433, 862, 866, 1724, 1732, 12499, 12557, 24998, 25114, 49996, 50228, 186623, 373246, 746492, 5412067, 10824134, 21648268]

約数ペア:

[(1, 21648268), (2, 10824134), (4, 5412067), (29, 746492), (58, 373246), (116, 186623), (431, 50228), (433, 49996), (862, 25114), (866, 24998), (1724, 12557), (1732, 12499)]