21853648

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{71887}}^1$

素因数の和:71914

約数の個数: 20

約数和(自身を含む): 44570560

約数和(自身を除く): 22716912

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 71887, 143774, 287548, 575096, 1150192, 1365853, 2731706, 5463412, 10926824, 21853648]

約数ペア:

[(1, 21853648), (2, 10926824), (4, 5463412), (8, 2731706), (16, 1365853), (19, 1150192), (38, 575096), (76, 287548), (152, 143774), (304, 71887)]