19637892

素因数分解:

$2^2\times 3^2\times {\mathrm{545497}}^1$

素因数の和:545507

約数の個数: 18

約数和(自身を含む): 49640318

約数和(自身を除く): 30002426

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 545497, 1090994, 1636491, 2181988, 3272982, 4909473, 6545964, 9818946, 19637892]

約数ペア:

[(1, 19637892), (2, 9818946), (3, 6545964), (4, 4909473), (6, 3272982), (9, 2181988), (12, 1636491), (18, 1090994), (36, 545497)]