21288112

素因数分解:

$2^4\times {\mathrm{179}}^1\times {\mathrm{7433}}^1$

素因数の和:7620

約数の個数: 20

約数和(自身を含む): 41481720

約数和(自身を除く): 20193608

約数列:

[1, 2, 4, 8, 16, 179, 358, 716, 1432, 2864, 7433, 14866, 29732, 59464, 118928, 1330507, 2661014, 5322028, 10644056, 21288112]

約数ペア:

[(1, 21288112), (2, 10644056), (4, 5322028), (8, 2661014), (16, 1330507), (179, 118928), (358, 59464), (716, 29732), (1432, 14866), (2864, 7433)]