28066401

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{347}}^1$

素因数の和:426

約数の個数: 48

約数和(自身を含む): 47773440

約数和(自身を除く): 19707039

約数列:

[1, 3, 9, 11, 19, 33, 43, 57, 99, 129, 171, 209, 347, 387, 473, 627, 817, 1041, 1419, 1881, 2451, 3123, 3817, 4257, 6593, 7353, 8987, 11451, 14921, 19779, 26961, 34353, 44763, 59337, 72523, 80883, 134289, 164131, 217569, 283499, 492393, 652707, 850497, 1477179, 2551491, 3118489, 9355467, 28066401]

約数ペア:

[(1, 28066401), (3, 9355467), (9, 3118489), (11, 2551491), (19, 1477179), (33, 850497), (43, 652707), (57, 492393), (99, 283499), (129, 217569), (171, 164131), (209, 134289), (347, 80883), (387, 72523), (473, 59337), (627, 44763), (817, 34353), (1041, 26961), (1419, 19779), (1881, 14921), (2451, 11451), (3123, 8987), (3817, 7353), (4257, 6593)]