21000306572

素因数分解:

$2^2\times 7^1\times {\mathrm{750010949}}^1$

素因数の和:750010960

約数の個数: 12

約数和(自身を含む): 42000613200

約数和(自身を除く): 21000306628

約数列:

[1, 2, 4, 7, 14, 28, 750010949, 1500021898, 3000043796, 5250076643, 10500153286, 21000306572]

約数ペア:

[(1, 21000306572), (2, 10500153286), (4, 5250076643), (7, 3000043796), (14, 1500021898), (28, 750010949)]