20945994

素因数分解:

$2^1\times 3^1\times {\mathrm{71}}^1\times {\mathrm{49169}}^1$

素因数の和:49245

約数の個数: 16

約数和(自身を含む): 42482880

約数和(自身を除く): 21536886

約数列:

[1, 2, 3, 6, 71, 142, 213, 426, 49169, 98338, 147507, 295014, 3490999, 6981998, 10472997, 20945994]

約数ペア:

[(1, 20945994), (2, 10472997), (3, 6981998), (6, 3490999), (71, 295014), (142, 147507), (213, 98338), (426, 49169)]