28405395

素因数分解:

$3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{8647}}^1$

素因数の和:8731

約数の個数: 24

約数和(自身を含む): 49916256

約数和(自身を除く): 21510861

約数列:

[1, 3, 5, 9, 15, 45, 73, 219, 365, 657, 1095, 3285, 8647, 25941, 43235, 77823, 129705, 389115, 631231, 1893693, 3156155, 5681079, 9468465, 28405395]

約数ペア:

[(1, 28405395), (3, 9468465), (5, 5681079), (9, 3156155), (15, 1893693), (45, 631231), (73, 389115), (219, 129705), (365, 77823), (657, 43235), (1095, 25941), (3285, 8647)]