18641571

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{907}}^1$

素因数の和:971

約数の個数: 32

約数和(自身を含む): 29288448

約数和(自身を除く): 10646877

約数列:

[1, 3, 13, 17, 31, 39, 51, 93, 221, 403, 527, 663, 907, 1209, 1581, 2721, 6851, 11791, 15419, 20553, 28117, 35373, 46257, 84351, 200447, 365521, 477989, 601341, 1096563, 1433967, 6213857, 18641571]

約数ペア:

[(1, 18641571), (3, 6213857), (13, 1433967), (17, 1096563), (31, 601341), (39, 477989), (51, 365521), (93, 200447), (221, 84351), (403, 46257), (527, 35373), (663, 28117), (907, 20553), (1209, 15419), (1581, 11791), (2721, 6851)]