2189156984

素因数分解:

$2^3\times 7^1\times {\mathrm{197}}^1\times {\mathrm{198437}}^1$

素因数の和:198647

約数の個数: 32

約数和(自身を含む): 4714886880

約数和(自身を除く): 2525729896

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 197, 394, 788, 1379, 1576, 2758, 5516, 11032, 198437, 396874, 793748, 1389059, 1587496, 2778118, 5556236, 11112472, 39092089, 78184178, 156368356, 273644623, 312736712, 547289246, 1094578492, 2189156984]

約数ペア:

[(1, 2189156984), (2, 1094578492), (4, 547289246), (7, 312736712), (8, 273644623), (14, 156368356), (28, 78184178), (56, 39092089), (197, 11112472), (394, 5556236), (788, 2778118), (1379, 1587496), (1576, 1389059), (2758, 793748), (5516, 396874), (11032, 198437)]