20944989

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{6173}}^1$

素因数の和:6221

約数の個数: 24

約数和(自身を含む): 33710040

約数和(自身を除く): 12765051

約数列:

[1, 3, 9, 13, 29, 39, 87, 117, 261, 377, 1131, 3393, 6173, 18519, 55557, 80249, 179017, 240747, 537051, 722241, 1611153, 2327221, 6981663, 20944989]

約数ペア:

[(1, 20944989), (3, 6981663), (9, 2327221), (13, 1611153), (29, 722241), (39, 537051), (87, 240747), (117, 179017), (261, 80249), (377, 55557), (1131, 18519), (3393, 6173)]