21240168

素因数分解:

$2^3\times 3^1\times {\mathrm{401}}^1\times {\mathrm{2207}}^1$

素因数の和:2617

約数の個数: 32

約数和(自身を含む): 53256960

約数和(自身を除く): 32016792

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 401, 802, 1203, 1604, 2207, 2406, 3208, 4414, 4812, 6621, 8828, 9624, 13242, 17656, 26484, 52968, 885007, 1770014, 2655021, 3540028, 5310042, 7080056, 10620084, 21240168]

約数ペア:

[(1, 21240168), (2, 10620084), (3, 7080056), (4, 5310042), (6, 3540028), (8, 2655021), (12, 1770014), (24, 885007), (401, 52968), (802, 26484), (1203, 17656), (1604, 13242), (2207, 9624), (2406, 8828), (3208, 6621), (4414, 4812)]