21965804

素因数分解:

$2^2\times 7^1\times {\mathrm{439}}^1\times {\mathrm{1787}}^1$

素因数の和:2237

約数の個数: 24

約数和(自身を含む): 44056320

約数和(自身を除く): 22090516

約数列:

[1, 2, 4, 7, 14, 28, 439, 878, 1756, 1787, 3073, 3574, 6146, 7148, 12292, 12509, 25018, 50036, 784493, 1568986, 3137972, 5491451, 10982902, 21965804]

約数ペア:

[(1, 21965804), (2, 10982902), (4, 5491451), (7, 3137972), (14, 1568986), (28, 784493), (439, 50036), (878, 25018), (1756, 12509), (1787, 12292), (3073, 7148), (3574, 6146)]