428697

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1$

素因数の和:157

約数の個数: 24

約数和(自身を含む): 686400

約数和(自身を除く): 257703

約数列:

[1, 3, 9, 19, 23, 57, 69, 109, 171, 207, 327, 437, 981, 1311, 2071, 2507, 3933, 6213, 7521, 18639, 22563, 47633, 142899, 428697]

約数ペア:

[(1, 428697), (3, 142899), (9, 47633), (19, 22563), (23, 18639), (57, 7521), (69, 6213), (109, 3933), (171, 2507), (207, 2071), (327, 1311), (437, 981)]