19805462649

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{64381}}^1$

素因数の和:64670

約数の個数: 48

約数和(自身を含む): 34549956480

約数和(自身を除く): 14744493831

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 257, 399, 771, 1197, 1799, 2313, 4883, 5397, 14649, 16191, 34181, 43947, 64381, 102543, 193143, 307629, 450667, 579429, 1223239, 1352001, 3669717, 4056003, 8562673, 11009151, 16545917, 25688019, 49637751, 77064057, 115821419, 148913253, 314372423, 347464257, 943117269, 1042392771, 2200606961, 2829351807, 6601820883, 19805462649]

約数ペア:

[(1, 19805462649), (3, 6601820883), (7, 2829351807), (9, 2200606961), (19, 1042392771), (21, 943117269), (57, 347464257), (63, 314372423), (133, 148913253), (171, 115821419), (257, 77064057), (399, 49637751), (771, 25688019), (1197, 16545917), (1799, 11009151), (2313, 8562673), (4883, 4056003), (5397, 3669717), (14649, 1352001), (16191, 1223239), (34181, 579429), (43947, 450667), (64381, 307629), (102543, 193143)]