20903694

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{97}}^1\times {\mathrm{733}}^1$

素因数の和:849

約数の個数: 48

約数和(自身を含む): 49201488

約数和(自身を除く): 28297794

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 97, 98, 147, 194, 291, 294, 582, 679, 733, 1358, 1466, 2037, 2199, 4074, 4398, 4753, 5131, 9506, 10262, 14259, 15393, 28518, 30786, 35917, 71101, 71834, 107751, 142202, 213303, 215502, 426606, 497707, 995414, 1493121, 2986242, 3483949, 6967898, 10451847, 20903694]

約数ペア:

[(1, 20903694), (2, 10451847), (3, 6967898), (6, 3483949), (7, 2986242), (14, 1493121), (21, 995414), (42, 497707), (49, 426606), (97, 215502), (98, 213303), (147, 142202), (194, 107751), (291, 71834), (294, 71101), (582, 35917), (679, 30786), (733, 28518), (1358, 15393), (1466, 14259), (2037, 10262), (2199, 9506), (4074, 5131), (4398, 4753)]