209260485

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{664319}}^1$

素因数の和:664337

約数の個数: 24

約数和(自身を含む): 414535680

約数和(自身を除く): 205275195

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 664319, 1992957, 3321595, 4650233, 5978871, 9964785, 13950699, 23251165, 29894355, 41852097, 69753495, 209260485]

約数ペア:

[(1, 209260485), (3, 69753495), (5, 41852097), (7, 29894355), (9, 23251165), (15, 13950699), (21, 9964785), (35, 5978871), (45, 4650233), (63, 3321595), (105, 1992957), (315, 664319)]