208537721

素因数分解:

$7^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{3203}}^1$

素因数の和:3412

約数の個数: 16

約数和(自身を含む): 243606528

約数和(自身を除く): 35068807

約数列:

[1, 7, 71, 131, 497, 917, 3203, 9301, 22421, 65107, 227413, 419593, 1591891, 2937151, 29791103, 208537721]

約数ペア:

[(1, 208537721), (7, 29791103), (71, 2937151), (131, 1591891), (497, 419593), (917, 227413), (3203, 65107), (9301, 22421)]