206819979

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{109}}^1\times {\mathrm{257}}^1$

素因数の和:499

約数の個数: 32

約数和(自身を含む): 294243840

約数和(自身を除く): 87423861

約数列:

[1, 3, 23, 69, 107, 109, 257, 321, 327, 771, 2461, 2507, 5911, 7383, 7521, 11663, 17733, 27499, 28013, 34989, 82497, 84039, 268249, 632477, 644299, 804747, 1897431, 1932897, 2997391, 8992173, 68939993, 206819979]

約数ペア:

[(1, 206819979), (3, 68939993), (23, 8992173), (69, 2997391), (107, 1932897), (109, 1897431), (257, 804747), (321, 644299), (327, 632477), (771, 268249), (2461, 84039), (2507, 82497), (5911, 34989), (7383, 28013), (7521, 27499), (11663, 17733)]