21862768

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{71917}}^1$

素因数の和:71944

約数の個数: 20

約数和(自身を含む): 44589160

約数和(自身を除く): 22726392

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 71917, 143834, 287668, 575336, 1150672, 1366423, 2732846, 5465692, 10931384, 21862768]

約数ペア:

[(1, 21862768), (2, 10931384), (4, 5465692), (8, 2732846), (16, 1366423), (19, 1150672), (38, 575336), (76, 287668), (152, 143834), (304, 71917)]