27951147

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{1229}}^1$

素因数の和:1280

約数の個数: 36

約数和(自身を含む): 48737520

約数和(自身を除く): 20786373

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 361, 399, 1083, 1197, 1229, 2527, 3249, 3687, 7581, 8603, 11061, 22743, 23351, 25809, 70053, 77427, 163457, 210159, 443669, 490371, 1331007, 1471113, 3105683, 3993021, 9317049, 27951147]

約数ペア:

[(1, 27951147), (3, 9317049), (7, 3993021), (9, 3105683), (19, 1471113), (21, 1331007), (57, 490371), (63, 443669), (133, 210159), (171, 163457), (361, 77427), (399, 70053), (1083, 25809), (1197, 23351), (1229, 22743), (2527, 11061), (3249, 8603), (3687, 7581)]