209972913

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{109}}^2\times {\mathrm{137}}^1$

素因数の和:401

約数の個数: 24

約数和(自身を含む): 291237408

約数和(自身を除く): 81264495

約数列:

[1, 3, 43, 109, 129, 137, 327, 411, 4687, 5891, 11881, 14061, 14933, 17673, 35643, 44799, 510883, 642119, 1532649, 1627697, 1926357, 4883091, 69990971, 209972913]

約数ペア:

[(1, 209972913), (3, 69990971), (43, 4883091), (109, 1926357), (129, 1627697), (137, 1532649), (327, 642119), (411, 510883), (4687, 44799), (5891, 35643), (11881, 17673), (14061, 14933)]