21939344

素因数分解:

$2^4\times 7^1\times {\mathrm{195887}}^1$

素因数の和:195902

約数の個数: 20

約数和(自身を含む): 48580224

約数和(自身を除く): 26640880

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 195887, 391774, 783548, 1371209, 1567096, 2742418, 3134192, 5484836, 10969672, 21939344]

約数ペア:

[(1, 21939344), (2, 10969672), (4, 5484836), (7, 3134192), (8, 2742418), (14, 1567096), (16, 1371209), (28, 783548), (56, 391774), (112, 195887)]