20079297

素因数分解:

$3^2\times 7^1\times {\mathrm{67}}^2\times {\mathrm{71}}^1$

素因数の和:218

約数の個数: 36

約数和(自身を含む): 34122816

約数和(自身を除く): 14043519

約数列:

[1, 3, 7, 9, 21, 63, 67, 71, 201, 213, 469, 497, 603, 639, 1407, 1491, 4221, 4473, 4489, 4757, 13467, 14271, 31423, 33299, 40401, 42813, 94269, 99897, 282807, 299691, 318719, 956157, 2231033, 2868471, 6693099, 20079297]

約数ペア:

[(1, 20079297), (3, 6693099), (7, 2868471), (9, 2231033), (21, 956157), (63, 318719), (67, 299691), (71, 282807), (201, 99897), (213, 94269), (469, 42813), (497, 40401), (603, 33299), (639, 31423), (1407, 14271), (1491, 13467), (4221, 4757), (4473, 4489)]