20987112969

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{4889}}^1\times {\mathrm{28057}}^1$

素因数の和:32969

約数の個数: 24

約数和(自身を含む): 32105647080

約数和(自身を除く): 11118534111

約数列:

[1, 3, 9, 17, 51, 153, 4889, 14667, 28057, 44001, 83113, 84171, 249339, 252513, 476969, 748017, 1430907, 4292721, 137170673, 411512019, 1234536057, 2331901441, 6995704323, 20987112969]

約数ペア:

[(1, 20987112969), (3, 6995704323), (9, 2331901441), (17, 1234536057), (51, 411512019), (153, 137170673), (4889, 4292721), (14667, 1430907), (28057, 748017), (44001, 476969), (83113, 252513), (84171, 249339)]