20109209211

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{877}}^1\times {\mathrm{27997}}^1$

素因数の和:28900

約数の個数: 48

約数和(自身を含む): 35791747264

約数和(自身を除く): 15682538053

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 877, 2631, 6139, 7893, 11401, 18417, 27997, 34203, 55251, 79807, 83991, 102609, 195979, 239421, 251973, 363961, 587937, 718263, 1091883, 1763811, 2547727, 3275649, 7643181, 22929543, 24553369, 73660107, 171873583, 220980321, 319193797, 515620749, 957581391, 1546862247, 2234356579, 2872744173, 6703069737, 20109209211]

約数ペア:

[(1, 20109209211), (3, 6703069737), (7, 2872744173), (9, 2234356579), (13, 1546862247), (21, 957581391), (39, 515620749), (63, 319193797), (91, 220980321), (117, 171873583), (273, 73660107), (819, 24553369), (877, 22929543), (2631, 7643181), (6139, 3275649), (7893, 2547727), (11401, 1763811), (18417, 1091883), (27997, 718263), (34203, 587937), (55251, 363961), (79807, 251973), (83991, 239421), (102609, 195979)]