21687850

素因数分解:

$2^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{18859}}^1$

素因数の和:18894

約数の個数: 24

約数和(自身を含む): 42095520

約数和(自身を除く): 20407670

約数列:

[1, 2, 5, 10, 23, 25, 46, 50, 115, 230, 575, 1150, 18859, 37718, 94295, 188590, 433757, 471475, 867514, 942950, 2168785, 4337570, 10843925, 21687850]

約数ペア:

[(1, 21687850), (2, 10843925), (5, 4337570), (10, 2168785), (23, 942950), (25, 867514), (46, 471475), (50, 433757), (115, 188590), (230, 94295), (575, 37718), (1150, 18859)]