21291284255

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{193}}^1\times {\mathrm{5573}}^1$

素因数の和:5915

約数の個数: 32

約数和(自身を含む): 26627310144

約数和(自身を除く): 5336025889

約数列:

[1, 5, 37, 107, 185, 193, 535, 965, 3959, 5573, 7141, 19795, 20651, 27865, 35705, 103255, 206201, 596311, 764087, 1031005, 1075589, 2981555, 3820435, 5377945, 22063507, 39796793, 110317535, 115088023, 198983965, 575440115, 4258256851, 21291284255]

約数ペア:

[(1, 21291284255), (5, 4258256851), (37, 575440115), (107, 198983965), (185, 115088023), (193, 110317535), (535, 39796793), (965, 22063507), (3959, 5377945), (5573, 3820435), (7141, 2981555), (19795, 1075589), (20651, 1031005), (27865, 764087), (35705, 596311), (103255, 206201)]