18131966

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{673}}^1\times {\mathrm{709}}^1$

素因数の和:1403

約数の個数: 16

約数和(自身を含む): 28712400

約数和(自身を除く): 10580434

約数列:

[1, 2, 19, 38, 673, 709, 1346, 1418, 12787, 13471, 25574, 26942, 477157, 954314, 9065983, 18131966]

約数ペア:

[(1, 18131966), (2, 9065983), (19, 954314), (38, 477157), (673, 26942), (709, 25574), (1346, 13471), (1418, 12787)]