20803500018

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{3839701}}^1$

素因数の和:3839759

約数の個数: 48

約数和(自身を含む): 52711429056

約数和(自身を除く): 31907929038

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 43, 63, 86, 126, 129, 258, 301, 387, 602, 774, 903, 1806, 2709, 5418, 3839701, 7679402, 11519103, 23038206, 26877907, 34557309, 53755814, 69114618, 80633721, 161267442, 165107143, 241901163, 330214286, 483802326, 495321429, 990642858, 1155750001, 1485964287, 2311500002, 2971928574, 3467250003, 6934500006, 10401750009, 20803500018]

約数ペア:

[(1, 20803500018), (2, 10401750009), (3, 6934500006), (6, 3467250003), (7, 2971928574), (9, 2311500002), (14, 1485964287), (18, 1155750001), (21, 990642858), (42, 495321429), (43, 483802326), (63, 330214286), (86, 241901163), (126, 165107143), (129, 161267442), (258, 80633721), (301, 69114618), (387, 53755814), (602, 34557309), (774, 26877907), (903, 23038206), (1806, 11519103), (2709, 7679402), (5418, 3839701)]