21507032

素因数分解:

$2^3\times {\mathrm{389}}^1\times {\mathrm{6911}}^1$

素因数の和:7306

約数の個数: 16

約数和(自身を含む): 40435200

約数和(自身を除く): 18928168

約数列:

[1, 2, 4, 8, 389, 778, 1556, 3112, 6911, 13822, 27644, 55288, 2688379, 5376758, 10753516, 21507032]

約数ペア:

[(1, 21507032), (2, 10753516), (4, 5376758), (8, 2688379), (389, 55288), (778, 27644), (1556, 13822), (3112, 6911)]