27739257

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:222

約数の個数: 64

約数和(自身を含む): 49674240

約数和(自身を除く): 21934983

約数列:

[1, 3, 7, 13, 17, 21, 39, 43, 51, 91, 119, 129, 139, 221, 273, 301, 357, 417, 559, 663, 731, 903, 973, 1547, 1677, 1807, 2193, 2363, 2919, 3913, 4641, 5117, 5421, 5977, 7089, 9503, 11739, 12649, 15351, 16541, 17931, 28509, 30719, 37947, 41839, 49623, 66521, 77701, 92157, 101609, 125517, 199563, 215033, 233103, 304827, 543907, 645099, 711263, 1320917, 1631721, 2133789, 3962751, 9246419, 27739257]

約数ペア:

[(1, 27739257), (3, 9246419), (7, 3962751), (13, 2133789), (17, 1631721), (21, 1320917), (39, 711263), (43, 645099), (51, 543907), (91, 304827), (119, 233103), (129, 215033), (139, 199563), (221, 125517), (273, 101609), (301, 92157), (357, 77701), (417, 66521), (559, 49623), (663, 41839), (731, 37947), (903, 30719), (973, 28509), (1547, 17931), (1677, 16541), (1807, 15351), (2193, 12649), (2363, 11739), (2919, 9503), (3913, 7089), (4641, 5977), (5117, 5421)]