257079501

素因数分解:

$3^4\times 7^1\times {\mathrm{73}}^1\times {\mathrm{6211}}^1$

素因数の和:6303

約数の個数: 40

約数和(自身を含む): 444977984

約数和(自身を除く): 187898483

約数列:

[1, 3, 7, 9, 21, 27, 63, 73, 81, 189, 219, 511, 567, 657, 1533, 1971, 4599, 5913, 6211, 13797, 18633, 41391, 43477, 55899, 130431, 167697, 391293, 453403, 503091, 1173879, 1360209, 3173821, 3521637, 4080627, 9521463, 12241881, 28564389, 36725643, 85693167, 257079501]

約数ペア:

[(1, 257079501), (3, 85693167), (7, 36725643), (9, 28564389), (21, 12241881), (27, 9521463), (63, 4080627), (73, 3521637), (81, 3173821), (189, 1360209), (219, 1173879), (511, 503091), (567, 453403), (657, 391293), (1533, 167697), (1971, 130431), (4599, 55899), (5913, 43477), (6211, 41391), (13797, 18633)]