86975217

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{72661}}^1$

素因数の和:72693

約数の個数: 24

約数和(自身を含む): 151136960

約数和(自身を除く): 64161743

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 72661, 217983, 508627, 653949, 1380559, 1525881, 4141677, 4577643, 9663913, 12425031, 28991739, 86975217]

約数ペア:

[(1, 86975217), (3, 28991739), (7, 12425031), (9, 9663913), (19, 4577643), (21, 4141677), (57, 1525881), (63, 1380559), (133, 653949), (171, 508627), (399, 217983), (1197, 72661)]