19171175

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{853}}^1$

素因数の和:923

約数の個数: 24

約数和(自身を含む): 25415040

約数和(自身を除く): 6243865

約数列:

[1, 5, 25, 29, 31, 145, 155, 725, 775, 853, 899, 4265, 4495, 21325, 22475, 24737, 26443, 123685, 132215, 618425, 661075, 766847, 3834235, 19171175]

約数ペア:

[(1, 19171175), (5, 3834235), (25, 766847), (29, 661075), (31, 618425), (145, 132215), (155, 123685), (725, 26443), (775, 24737), (853, 22475), (899, 21325), (4265, 4495)]