18950733

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:139

約数の個数: 64

約数和(自身を含む): 32659200

約数和(自身を除く): 13708467

約数列:

[1, 3, 9, 17, 19, 27, 41, 51, 53, 57, 123, 153, 159, 171, 323, 369, 459, 477, 513, 697, 779, 901, 969, 1007, 1107, 1431, 2091, 2173, 2337, 2703, 2907, 3021, 6273, 6519, 7011, 8109, 8721, 9063, 13243, 17119, 18819, 19557, 21033, 24327, 27189, 36941, 39729, 41287, 51357, 58671, 110823, 119187, 123861, 154071, 332469, 357561, 371583, 462213, 701879, 997407, 1114749, 2105637, 6316911, 18950733]

約数ペア:

[(1, 18950733), (3, 6316911), (9, 2105637), (17, 1114749), (19, 997407), (27, 701879), (41, 462213), (51, 371583), (53, 357561), (57, 332469), (123, 154071), (153, 123861), (159, 119187), (171, 110823), (323, 58671), (369, 51357), (459, 41287), (477, 39729), (513, 36941), (697, 27189), (779, 24327), (901, 21033), (969, 19557), (1007, 18819), (1107, 17119), (1431, 13243), (2091, 9063), (2173, 8721), (2337, 8109), (2703, 7011), (2907, 6519), (3021, 6273)]