28527303

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:172

約数の個数: 48

約数和(自身を含む): 47402496

約数和(自身を除く): 18875193

約数列:

[1, 3, 7, 19, 21, 53, 57, 71, 133, 159, 213, 361, 371, 399, 497, 1007, 1083, 1113, 1349, 1491, 2527, 3021, 3763, 4047, 7049, 7581, 9443, 11289, 19133, 21147, 25631, 26341, 28329, 57399, 71497, 76893, 79023, 133931, 179417, 214491, 401793, 500479, 538251, 1358443, 1501437, 4075329, 9509101, 28527303]

約数ペア:

[(1, 28527303), (3, 9509101), (7, 4075329), (19, 1501437), (21, 1358443), (53, 538251), (57, 500479), (71, 401793), (133, 214491), (159, 179417), (213, 133931), (361, 79023), (371, 76893), (399, 71497), (497, 57399), (1007, 28329), (1083, 26341), (1113, 25631), (1349, 21147), (1491, 19133), (2527, 11289), (3021, 9443), (3763, 7581), (4047, 7049)]