205428587

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{1117}}^1$

素因数の和:1227

約数の個数: 32

約数和(自身を含む): 264456192

約数和(自身を除く): 59027605

約数列:

[1, 7, 13, 43, 47, 91, 301, 329, 559, 611, 1117, 2021, 3913, 4277, 7819, 14147, 14521, 26273, 48031, 52499, 101647, 183911, 336217, 367493, 624403, 682487, 2257457, 4370821, 4777409, 15802199, 29346941, 205428587]

約数ペア:

[(1, 205428587), (7, 29346941), (13, 15802199), (43, 4777409), (47, 4370821), (91, 2257457), (301, 682487), (329, 624403), (559, 367493), (611, 336217), (1117, 183911), (2021, 101647), (3913, 52499), (4277, 48031), (7819, 26273), (14147, 14521)]