21285572

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{69109}}^1$

素因数の和:69131

約数の個数: 24

約数和(自身を含む): 46441920

約数和(自身を除く): 25156348

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 69109, 138218, 276436, 483763, 760199, 967526, 1520398, 1935052, 3040796, 5321393, 10642786, 21285572]

約数ペア:

[(1, 21285572), (2, 10642786), (4, 5321393), (7, 3040796), (11, 1935052), (14, 1520398), (22, 967526), (28, 760199), (44, 483763), (77, 276436), (154, 138218), (308, 69109)]