28161921

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{4787}}^1$

素因数の和:4880

約数の個数: 16

約数和(自身を含む): 39299904

約数和(自身を除く): 11137983

約数列:

[1, 3, 37, 53, 111, 159, 1961, 4787, 5883, 14361, 177119, 253711, 531357, 761133, 9387307, 28161921]

約数ペア:

[(1, 28161921), (3, 9387307), (37, 761133), (53, 531357), (111, 253711), (159, 177119), (1961, 14361), (4787, 5883)]