21357028

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{69341}}^1$

素因数の和:69363

約数の個数: 24

約数和(自身を含む): 46597824

約数和(自身を除く): 25240796

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 69341, 138682, 277364, 485387, 762751, 970774, 1525502, 1941548, 3051004, 5339257, 10678514, 21357028]

約数ペア:

[(1, 21357028), (2, 10678514), (4, 5339257), (7, 3051004), (11, 1941548), (14, 1525502), (22, 970774), (28, 762751), (44, 485387), (77, 277364), (154, 138682), (308, 69341)]