20757258

素因数分解:

$2^1\times 3^2\times {\mathrm{73}}^1\times {\mathrm{15797}}^1$

素因数の和:15878

約数の個数: 24

約数和(自身を含む): 45593028

約数和(自身を除く): 24835770

約数列:

[1, 2, 3, 6, 9, 18, 73, 146, 219, 438, 657, 1314, 15797, 31594, 47391, 94782, 142173, 284346, 1153181, 2306362, 3459543, 6919086, 10378629, 20757258]

約数ペア:

[(1, 20757258), (2, 10378629), (3, 6919086), (6, 3459543), (9, 2306362), (18, 1153181), (73, 284346), (146, 142173), (219, 94782), (438, 47391), (657, 31594), (1314, 15797)]