18230979

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{643}}^1\times {\mathrm{727}}^1$

素因数の和:1386

約数の個数: 16

約数和(自身を含む): 26254592

約数和(自身を除く): 8023613

約数列:

[1, 3, 13, 39, 643, 727, 1929, 2181, 8359, 9451, 25077, 28353, 467461, 1402383, 6076993, 18230979]

約数ペア:

[(1, 18230979), (3, 6076993), (13, 1402383), (39, 467461), (643, 28353), (727, 25077), (1929, 9451), (2181, 8359)]