81773356

素因数分解:

$2^2\times 7^2\times {\mathrm{421}}^1\times {\mathrm{991}}^1$

素因数の和:1430

約数の個数: 36

約数和(自身を含む): 167030976

約数和(自身を除く): 85257620

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 421, 842, 991, 1684, 1982, 2947, 3964, 5894, 6937, 11788, 13874, 20629, 27748, 41258, 48559, 82516, 97118, 194236, 417211, 834422, 1668844, 2920477, 5840954, 11681908, 20443339, 40886678, 81773356]

約数ペア:

[(1, 81773356), (2, 40886678), (4, 20443339), (7, 11681908), (14, 5840954), (28, 2920477), (49, 1668844), (98, 834422), (196, 417211), (421, 194236), (842, 97118), (991, 82516), (1684, 48559), (1982, 41258), (2947, 27748), (3964, 20629), (5894, 13874), (6937, 11788)]