1893213

素因数分解:

$3^6\times 7^2\times {\mathrm{53}}^1$

素因数の和:85

約数の個数: 42

約数和(自身を含む): 3364254

約数和(自身を除く): 1471041

約数列:

[1, 3, 7, 9, 21, 27, 49, 53, 63, 81, 147, 159, 189, 243, 371, 441, 477, 567, 729, 1113, 1323, 1431, 1701, 2597, 3339, 3969, 4293, 5103, 7791, 10017, 11907, 12879, 23373, 30051, 35721, 38637, 70119, 90153, 210357, 270459, 631071, 1893213]

約数ペア:

[(1, 1893213), (3, 631071), (7, 270459), (9, 210357), (21, 90153), (27, 70119), (49, 38637), (53, 35721), (63, 30051), (81, 23373), (147, 12879), (159, 11907), (189, 10017), (243, 7791), (371, 5103), (441, 4293), (477, 3969), (567, 3339), (729, 2597), (1113, 1701), (1323, 1431)]