28405377

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1051}}^1$

素因数の和:1091

約数の個数: 64

約数和(自身を含む): 56555520

約数和(自身を除く): 28150143

約数列:

[1, 3, 7, 9, 11, 13, 21, 27, 33, 39, 63, 77, 91, 99, 117, 143, 189, 231, 273, 297, 351, 429, 693, 819, 1001, 1051, 1287, 2079, 2457, 3003, 3153, 3861, 7357, 9009, 9459, 11561, 13663, 22071, 27027, 28377, 34683, 40989, 66213, 80927, 95641, 104049, 122967, 150293, 198639, 242781, 286923, 312147, 368901, 450879, 728343, 860769, 1052051, 1352637, 2185029, 2582307, 3156153, 4057911, 9468459, 28405377]

約数ペア:

[(1, 28405377), (3, 9468459), (7, 4057911), (9, 3156153), (11, 2582307), (13, 2185029), (21, 1352637), (27, 1052051), (33, 860769), (39, 728343), (63, 450879), (77, 368901), (91, 312147), (99, 286923), (117, 242781), (143, 198639), (189, 150293), (231, 122967), (273, 104049), (297, 95641), (351, 80927), (429, 66213), (693, 40989), (819, 34683), (1001, 28377), (1051, 27027), (1287, 22071), (2079, 13663), (2457, 11561), (3003, 9459), (3153, 9009), (3861, 7357)]