15666084021

素因数分解:

$3^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{1771981}}^1$

素因数の和:1772412

約数の個数: 16

約数和(自身を含む): 23928844928

約数和(自身を除く): 8262760907

約数列:

[1, 3, 7, 21, 421, 1263, 2947, 8841, 1771981, 5315943, 12403867, 37211601, 746004001, 2238012003, 5222028007, 15666084021]

約数ペア:

[(1, 15666084021), (3, 5222028007), (7, 2238012003), (21, 746004001), (421, 37211601), (1263, 12403867), (2947, 5315943), (8841, 1771981)]