28252791

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23603}}^1$

素因数の和:23635

約数の個数: 24

約数和(自身を含む): 49096320

約数和(自身を除く): 20843529

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 23603, 70809, 165221, 212427, 448457, 495663, 1345371, 1486989, 3139199, 4036113, 9417597, 28252791]

約数ペア:

[(1, 28252791), (3, 9417597), (7, 4036113), (9, 3139199), (19, 1486989), (21, 1345371), (57, 495663), (63, 448457), (133, 212427), (171, 165221), (399, 70809), (1197, 23603)]