19782942

素因数分解:

$2^1\times 3^1\times {\mathrm{157}}^1\times {\mathrm{21001}}^1$

素因数の和:21163

約数の個数: 16

約数和(自身を含む): 39819792

約数和(自身を除く): 20036850

約数列:

[1, 2, 3, 6, 157, 314, 471, 942, 21001, 42002, 63003, 126006, 3297157, 6594314, 9891471, 19782942]

約数ペア:

[(1, 19782942), (2, 9891471), (3, 6594314), (6, 3297157), (157, 126006), (314, 63003), (471, 42002), (942, 21001)]