18681722

素因数分解:

$2^1\times {\mathrm{73}}^1\times {\mathrm{199}}^1\times {\mathrm{643}}^1$

素因数の和:917

約数の個数: 16

約数和(自身を含む): 28593600

約数和(自身を除く): 9911878

約数列:

[1, 2, 73, 146, 199, 398, 643, 1286, 14527, 29054, 46939, 93878, 127957, 255914, 9340861, 18681722]

約数ペア:

[(1, 18681722), (2, 9340861), (73, 255914), (146, 127957), (199, 93878), (398, 46939), (643, 29054), (1286, 14527)]