21952084

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{263}}^1\times {\mathrm{271}}^1$

素因数の和:556

約数の個数: 48

約数和(自身を含む): 48254976

約数和(自身を除く): 26302892

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 263, 271, 308, 526, 542, 1052, 1084, 1841, 1897, 2893, 2981, 3682, 3794, 5786, 5962, 7364, 7588, 11572, 11924, 20251, 20867, 40502, 41734, 71273, 81004, 83468, 142546, 285092, 498911, 784003, 997822, 1568006, 1995644, 3136012, 5488021, 10976042, 21952084]

約数ペア:

[(1, 21952084), (2, 10976042), (4, 5488021), (7, 3136012), (11, 1995644), (14, 1568006), (22, 997822), (28, 784003), (44, 498911), (77, 285092), (154, 142546), (263, 83468), (271, 81004), (308, 71273), (526, 41734), (542, 40502), (1052, 20867), (1084, 20251), (1841, 11924), (1897, 11572), (2893, 7588), (2981, 7364), (3682, 5962), (3794, 5786)]