28421433

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{431}}^2$

素因数の和:885

約数の個数: 18

約数和(自身を含む): 43569162

約数和(自身を除く): 15147729

約数列:

[1, 3, 9, 17, 51, 153, 431, 1293, 3879, 7327, 21981, 65943, 185761, 557283, 1671849, 3157937, 9473811, 28421433]

約数ペア:

[(1, 28421433), (3, 9473811), (9, 3157937), (17, 1671849), (51, 557283), (153, 185761), (431, 65943), (1293, 21981), (3879, 7327)]