51831213

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1\times {\mathrm{449}}^1$

素因数の和:721

約数の個数: 32

約数和(自身を含む): 82944000

約数和(自身を除く): 31112787

約数列:

[1, 3, 7, 21, 23, 69, 161, 239, 449, 483, 717, 1347, 1673, 3143, 5019, 5497, 9429, 10327, 16491, 30981, 38479, 72289, 107311, 115437, 216867, 321933, 751177, 2253531, 2468153, 7404459, 17277071, 51831213]

約数ペア:

[(1, 51831213), (3, 17277071), (7, 7404459), (21, 2468153), (23, 2253531), (69, 751177), (161, 321933), (239, 216867), (449, 115437), (483, 107311), (717, 72289), (1347, 38479), (1673, 30981), (3143, 16491), (5019, 10327), (5497, 9429)]