20805918

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{5107}}^1$

素因数の和:5216

約数の個数: 32

約数和(自身を含む): 48056064

約数和(自身を除く): 27250146

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 97, 194, 291, 582, 679, 1358, 2037, 4074, 5107, 10214, 15321, 30642, 35749, 71498, 107247, 214494, 495379, 990758, 1486137, 2972274, 3467653, 6935306, 10402959, 20805918]

約数ペア:

[(1, 20805918), (2, 10402959), (3, 6935306), (6, 3467653), (7, 2972274), (14, 1486137), (21, 990758), (42, 495379), (97, 214494), (194, 107247), (291, 71498), (582, 35749), (679, 30642), (1358, 15321), (2037, 10214), (4074, 5107)]