28988927

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1$

素因数の和:287

約数の個数: 32

約数和(自身を含む): 36288000

約数和(自身を除く): 7299073

約数列:

[1, 11, 17, 19, 41, 187, 199, 209, 323, 451, 697, 779, 2189, 3383, 3553, 3781, 7667, 8159, 8569, 13243, 37213, 41591, 64277, 89749, 138703, 145673, 155021, 707047, 1525733, 1705231, 2635357, 28988927]

約数ペア:

[(1, 28988927), (11, 2635357), (17, 1705231), (19, 1525733), (41, 707047), (187, 155021), (199, 145673), (209, 138703), (323, 89749), (451, 64277), (697, 41591), (779, 37213), (2189, 13243), (3383, 8569), (3553, 8159), (3781, 7667)]