28478739

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{227}}^1$

素因数の和:351

約数の個数: 32

約数和(自身を含む): 42024960

約数和(自身を除く): 13546221

約数列:

[1, 3, 19, 31, 57, 71, 93, 213, 227, 589, 681, 1349, 1767, 2201, 4047, 4313, 6603, 7037, 12939, 16117, 21111, 41819, 48351, 125457, 133703, 306223, 401109, 499627, 918669, 1498881, 9492913, 28478739]

約数ペア:

[(1, 28478739), (3, 9492913), (19, 1498881), (31, 918669), (57, 499627), (71, 401109), (93, 306223), (213, 133703), (227, 125457), (589, 48351), (681, 41819), (1349, 21111), (1767, 16117), (2201, 12939), (4047, 7037), (4313, 6603)]