21042028

素因数分解:

$2^2\times 7^1\times {\mathrm{277}}^1\times {\mathrm{2713}}^1$

素因数の和:3001

約数の個数: 24

約数和(自身を含む): 42251552

約数和(自身を除く): 21209524

約数列:

[1, 2, 4, 7, 14, 28, 277, 554, 1108, 1939, 2713, 3878, 5426, 7756, 10852, 18991, 37982, 75964, 751501, 1503002, 3006004, 5260507, 10521014, 21042028]

約数ペア:

[(1, 21042028), (2, 10521014), (4, 5260507), (7, 3006004), (14, 1503002), (28, 751501), (277, 75964), (554, 37982), (1108, 18991), (1939, 10852), (2713, 7756), (3878, 5426)]