21329744

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{25153}}^1$

素因数の和:25214

約数の個数: 20

約数和(自身を含む): 42107796

約数和(自身を除く): 20778052

約数列:

[1, 2, 4, 8, 16, 53, 106, 212, 424, 848, 25153, 50306, 100612, 201224, 402448, 1333109, 2666218, 5332436, 10664872, 21329744]

約数ペア:

[(1, 21329744), (2, 10664872), (4, 5332436), (8, 2666218), (16, 1333109), (53, 402448), (106, 201224), (212, 100612), (424, 50306), (848, 25153)]