51721857

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{887}}^1$

素因数の和:954

約数の個数: 48

約数和(自身を含む): 88657920

約数和(自身を除く): 36936063

約数列:

[1, 3, 9, 11, 19, 31, 33, 57, 93, 99, 171, 209, 279, 341, 589, 627, 887, 1023, 1767, 1881, 2661, 3069, 5301, 6479, 7983, 9757, 16853, 19437, 27497, 29271, 50559, 58311, 82491, 87813, 151677, 185383, 247473, 302467, 522443, 556149, 907401, 1567329, 1668447, 2722203, 4701987, 5746873, 17240619, 51721857]

約数ペア:

[(1, 51721857), (3, 17240619), (9, 5746873), (11, 4701987), (19, 2722203), (31, 1668447), (33, 1567329), (57, 907401), (93, 556149), (99, 522443), (171, 302467), (209, 247473), (279, 185383), (341, 151677), (589, 87813), (627, 82491), (887, 58311), (1023, 50559), (1767, 29271), (1881, 27497), (2661, 19437), (3069, 16853), (5301, 9757), (6479, 7983)]