51439479

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{211}}^1$

素因数の和:300

約数の個数: 64

約数和(自身を含む): 91176960

約数和(自身を除く): 39737481

約数列:

[1, 3, 7, 13, 19, 21, 39, 47, 57, 91, 133, 141, 211, 247, 273, 329, 399, 611, 633, 741, 893, 987, 1477, 1729, 1833, 2679, 2743, 4009, 4277, 4431, 5187, 6251, 8229, 9917, 11609, 12027, 12831, 18753, 19201, 28063, 29751, 34827, 52117, 57603, 69419, 81263, 84189, 128921, 156351, 188423, 208257, 243789, 364819, 386763, 565269, 902447, 1094457, 1318961, 2449499, 2707341, 3956883, 7348497, 17146493, 51439479]

約数ペア:

[(1, 51439479), (3, 17146493), (7, 7348497), (13, 3956883), (19, 2707341), (21, 2449499), (39, 1318961), (47, 1094457), (57, 902447), (91, 565269), (133, 386763), (141, 364819), (211, 243789), (247, 208257), (273, 188423), (329, 156351), (399, 128921), (611, 84189), (633, 81263), (741, 69419), (893, 57603), (987, 52117), (1477, 34827), (1729, 29751), (1833, 28063), (2679, 19201), (2743, 18753), (4009, 12831), (4277, 12027), (4431, 11609), (5187, 9917), (6251, 8229)]