18423891

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{907}}^1$

素因数の和:1011

約数の個数: 24

約数和(自身を含む): 27810224

約数和(自身を除く): 9386333

約数列:

[1, 3, 9, 37, 61, 111, 183, 333, 549, 907, 2257, 2721, 6771, 8163, 20313, 33559, 55327, 100677, 165981, 302031, 497943, 2047099, 6141297, 18423891]

約数ペア:

[(1, 18423891), (3, 6141297), (9, 2047099), (37, 497943), (61, 302031), (111, 165981), (183, 100677), (333, 55327), (549, 33559), (907, 20313), (2257, 8163), (2721, 6771)]