28284921

素因数分解:

$3^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{6701}}^1$

素因数の和:6781

約数の個数: 24

約数和(自身を含む): 47396544

約数和(自身を除く): 19111623

約数列:

[1, 3, 7, 9, 21, 63, 67, 201, 469, 603, 1407, 4221, 6701, 20103, 46907, 60309, 140721, 422163, 448967, 1346901, 3142769, 4040703, 9428307, 28284921]

約数ペア:

[(1, 28284921), (3, 9428307), (7, 4040703), (9, 3142769), (21, 1346901), (63, 448967), (67, 422163), (201, 140721), (469, 60309), (603, 46907), (1407, 20103), (4221, 6701)]