71287281

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{449}}^1$

素因数の和:550

約数の個数: 48

約数和(自身を含む): 117936000

約数和(自身を除く): 46648719

約数列:

[1, 3, 9, 13, 23, 39, 59, 69, 117, 177, 207, 299, 449, 531, 767, 897, 1347, 1357, 2301, 2691, 4041, 4071, 5837, 6903, 10327, 12213, 17511, 17641, 26491, 30981, 52533, 52923, 79473, 92943, 134251, 158769, 238419, 344383, 402753, 609293, 1033149, 1208259, 1827879, 3099447, 5483637, 7920809, 23762427, 71287281]

約数ペア:

[(1, 71287281), (3, 23762427), (9, 7920809), (13, 5483637), (23, 3099447), (39, 1827879), (59, 1208259), (69, 1033149), (117, 609293), (177, 402753), (207, 344383), (299, 238419), (449, 158769), (531, 134251), (767, 92943), (897, 79473), (1347, 52923), (1357, 52533), (2301, 30981), (2691, 26491), (4041, 17641), (4071, 17511), (5837, 12213), (6903, 10327)]