21800163

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{4967}}^1$

素因数の和:5007

約数の個数: 32

約数和(自身を含む): 38154240

約数和(自身を除く): 16354077

約数列:

[1, 3, 7, 11, 19, 21, 33, 57, 77, 133, 209, 231, 399, 627, 1463, 4389, 4967, 14901, 34769, 54637, 94373, 104307, 163911, 283119, 382459, 660611, 1038103, 1147377, 1981833, 3114309, 7266721, 21800163]

約数ペア:

[(1, 21800163), (3, 7266721), (7, 3114309), (11, 1981833), (19, 1147377), (21, 1038103), (33, 660611), (57, 382459), (77, 283119), (133, 163911), (209, 104307), (231, 94373), (399, 54637), (627, 34769), (1463, 14901), (4389, 4967)]