28736883

素因数分解:

$3^3\times 7^3\times {\mathrm{29}}^1\times {\mathrm{107}}^1$

素因数の和:166

約数の個数: 64

約数和(自身を含む): 51840000

約数和(自身を除く): 23103117

約数列:

[1, 3, 7, 9, 21, 27, 29, 49, 63, 87, 107, 147, 189, 203, 261, 321, 343, 441, 609, 749, 783, 963, 1029, 1323, 1421, 1827, 2247, 2889, 3087, 3103, 4263, 5243, 5481, 6741, 9261, 9309, 9947, 12789, 15729, 20223, 21721, 27927, 29841, 36701, 38367, 47187, 65163, 83781, 89523, 110103, 141561, 152047, 195489, 268569, 330309, 456141, 586467, 990927, 1064329, 1368423, 3192987, 4105269, 9578961, 28736883]

約数ペア:

[(1, 28736883), (3, 9578961), (7, 4105269), (9, 3192987), (21, 1368423), (27, 1064329), (29, 990927), (49, 586467), (63, 456141), (87, 330309), (107, 268569), (147, 195489), (189, 152047), (203, 141561), (261, 110103), (321, 89523), (343, 83781), (441, 65163), (609, 47187), (749, 38367), (783, 36701), (963, 29841), (1029, 27927), (1323, 21721), (1421, 20223), (1827, 15729), (2247, 12789), (2889, 9947), (3087, 9309), (3103, 9261), (4263, 6741), (5243, 5481)]