21499142

素因数分解:

$2^1\times 7^2\times {\mathrm{431}}^1\times {\mathrm{509}}^1$

素因数の和:956

約数の個数: 24

約数和(自身を含む): 37674720

約数和(自身を除く): 16175578

約数列:

[1, 2, 7, 14, 49, 98, 431, 509, 862, 1018, 3017, 3563, 6034, 7126, 21119, 24941, 42238, 49882, 219379, 438758, 1535653, 3071306, 10749571, 21499142]

約数ペア:

[(1, 21499142), (2, 10749571), (7, 3071306), (14, 1535653), (49, 438758), (98, 219379), (431, 49882), (509, 42238), (862, 24941), (1018, 21119), (3017, 7126), (3563, 6034)]