21000836288

素因数分解:

$2^6\times {\mathrm{47}}^1\times {\mathrm{6981661}}^1$

素因数の和:6981720

約数の個数: 28

約数和(自身を含む): 42560211552

約数和(自身を除く): 21559375264

約数列:

[1, 2, 4, 8, 16, 32, 47, 64, 94, 188, 376, 752, 1504, 3008, 6981661, 13963322, 27926644, 55853288, 111706576, 223413152, 328138067, 446826304, 656276134, 1312552268, 2625104536, 5250209072, 10500418144, 21000836288]

約数ペア:

[(1, 21000836288), (2, 10500418144), (4, 5250209072), (8, 2625104536), (16, 1312552268), (32, 656276134), (47, 446826304), (64, 328138067), (94, 223413152), (188, 111706576), (376, 55853288), (752, 27926644), (1504, 13963322), (3008, 6981661)]