21083728

素因数分解:

$2^4\times {\mathrm{197}}^1\times {\mathrm{6689}}^1$

素因数の和:6894

約数の個数: 20

約数和(自身を含む): 41063220

約数和(自身を除く): 19979492

約数列:

[1, 2, 4, 8, 16, 197, 394, 788, 1576, 3152, 6689, 13378, 26756, 53512, 107024, 1317733, 2635466, 5270932, 10541864, 21083728]

約数ペア:

[(1, 21083728), (2, 10541864), (4, 5270932), (8, 2635466), (16, 1317733), (197, 107024), (394, 53512), (788, 26756), (1576, 13378), (3152, 6689)]