201581247

素因数分解:

$3^1\times 7^2\times {\mathrm{1371301}}^1$

素因数の和:1371318

約数の個数: 12

約数和(自身を含む): 312656856

約数和(自身を除く): 111075609

約数列:

[1, 3, 7, 21, 49, 147, 1371301, 4113903, 9599107, 28797321, 67193749, 201581247]

約数ペア:

[(1, 201581247), (3, 67193749), (7, 28797321), (21, 9599107), (49, 4113903), (147, 1371301)]