28278844

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{642701}}^1$

素因数の和:642716

約数の個数: 12

約数和(自身を含む): 53986968

約数和(自身を除く): 25708124

約数列:

[1, 2, 4, 11, 22, 44, 642701, 1285402, 2570804, 7069711, 14139422, 28278844]

約数ペア:

[(1, 28278844), (2, 14139422), (4, 7069711), (11, 2570804), (22, 1285402), (44, 642701)]