51990879

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{349}}^1$

素因数の和:519

約数の個数: 32

約数和(自身を含む): 77414400

約数和(自身を除く): 25423521

約数列:

[1, 3, 17, 23, 51, 69, 127, 349, 381, 391, 1047, 1173, 2159, 2921, 5933, 6477, 8027, 8763, 17799, 24081, 44323, 49657, 132969, 136459, 148971, 409377, 753491, 1019429, 2260473, 3058287, 17330293, 51990879]

約数ペア:

[(1, 51990879), (3, 17330293), (17, 3058287), (23, 2260473), (51, 1019429), (69, 753491), (127, 409377), (349, 148971), (381, 136459), (391, 132969), (1047, 49657), (1173, 44323), (2159, 24081), (2921, 17799), (5933, 8763), (6477, 8027)]