20506719863

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{271}}^1\times {\mathrm{90841}}^1$

素因数の和:91143

約数の個数: 24

約数和(自身を含む): 25351458624

約数和(自身を除く): 4844738761

約数列:

[1, 7, 17, 49, 119, 271, 833, 1897, 4607, 13279, 32249, 90841, 225743, 635887, 1544297, 4451209, 10810079, 24617911, 75670553, 172325377, 418504487, 1206277639, 2929531409, 20506719863]

約数ペア:

[(1, 20506719863), (7, 2929531409), (17, 1206277639), (49, 418504487), (119, 172325377), (271, 75670553), (833, 24617911), (1897, 10810079), (4607, 4451209), (13279, 1544297), (32249, 635887), (90841, 225743)]