18991976

素因数分解:

$2^3\times {\mathrm{157}}^1\times {\mathrm{15121}}^1$

素因数の和:15284

約数の個数: 16

約数和(自身を含む): 35839140

約数和(自身を除く): 16847164

約数列:

[1, 2, 4, 8, 157, 314, 628, 1256, 15121, 30242, 60484, 120968, 2373997, 4747994, 9495988, 18991976]

約数ペア:

[(1, 18991976), (2, 9495988), (4, 4747994), (8, 2373997), (157, 120968), (314, 60484), (628, 30242), (1256, 15121)]