221279247

素因数分解:

$3^2\times 7^3\times {\mathrm{43}}^1\times {\mathrm{1667}}^1$

素因数の和:1737

約数の個数: 48

約数和(自身を含む): 381638400

約数和(自身を除く): 160359153

約数列:

[1, 3, 7, 9, 21, 43, 49, 63, 129, 147, 301, 343, 387, 441, 903, 1029, 1667, 2107, 2709, 3087, 5001, 6321, 11669, 14749, 15003, 18963, 35007, 44247, 71681, 81683, 105021, 132741, 215043, 245049, 501767, 571781, 645129, 735147, 1505301, 1715343, 3512369, 4515903, 5146029, 10537107, 24586583, 31611321, 73759749, 221279247]

約数ペア:

[(1, 221279247), (3, 73759749), (7, 31611321), (9, 24586583), (21, 10537107), (43, 5146029), (49, 4515903), (63, 3512369), (129, 1715343), (147, 1505301), (301, 735147), (343, 645129), (387, 571781), (441, 501767), (903, 245049), (1029, 215043), (1667, 132741), (2107, 105021), (2709, 81683), (3087, 71681), (5001, 44247), (6321, 35007), (11669, 18963), (14749, 15003)]