20171249917

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{337}}^1\times {\mathrm{5021}}^1$

素因数の和:5509

約数の個数: 32

約数和(自身を含む): 25094893824

約数和(自身を除く): 4923643907

約数列:

[1, 7, 13, 91, 131, 337, 917, 1703, 2359, 4381, 5021, 11921, 30667, 35147, 44147, 65273, 309029, 456911, 573911, 657751, 1692077, 4017377, 4604257, 8550763, 11844539, 21997001, 59855341, 153979007, 221662087, 1551634609, 2881607131, 20171249917]

約数ペア:

[(1, 20171249917), (7, 2881607131), (13, 1551634609), (91, 221662087), (131, 153979007), (337, 59855341), (917, 21997001), (1703, 11844539), (2359, 8550763), (4381, 4604257), (5021, 4017377), (11921, 1692077), (30667, 657751), (35147, 573911), (44147, 456911), (65273, 309029)]