19712975

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{883}}^1$

素因数の和:959

約数の個数: 24

約数和(自身を含む): 26307840

約数和(自身を除く): 6594865

約数列:

[1, 5, 19, 25, 47, 95, 235, 475, 883, 893, 1175, 4415, 4465, 16777, 22075, 22325, 41501, 83885, 207505, 419425, 788519, 1037525, 3942595, 19712975]

約数ペア:

[(1, 19712975), (5, 3942595), (19, 1037525), (25, 788519), (47, 419425), (95, 207505), (235, 83885), (475, 41501), (883, 22325), (893, 22075), (1175, 16777), (4415, 4465)]