209289905

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{52127}}^1$

素因数の和:52216

約数の個数: 16

約数和(自身を含む): 277737984

約数和(自身を除く): 68448079

約数列:

[1, 5, 11, 55, 73, 365, 803, 4015, 52127, 260635, 573397, 2866985, 3805271, 19026355, 41857981, 209289905]

約数ペア:

[(1, 209289905), (5, 41857981), (11, 19026355), (55, 3805271), (73, 2866985), (365, 573397), (803, 260635), (4015, 52127)]