20618367

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{311}}^1$

素因数の和:380

約数の個数: 48

約数和(自身を含む): 35852544

約数和(自身を除く): 15234177

約数列:

[1, 3, 7, 11, 21, 33, 41, 49, 77, 123, 147, 231, 287, 311, 451, 539, 861, 933, 1353, 1617, 2009, 2177, 3157, 3421, 6027, 6531, 9471, 10263, 12751, 15239, 22099, 23947, 38253, 45717, 66297, 71841, 89257, 140261, 167629, 267771, 420783, 502887, 624799, 981827, 1874397, 2945481, 6872789, 20618367]

約数ペア:

[(1, 20618367), (3, 6872789), (7, 2945481), (11, 1874397), (21, 981827), (33, 624799), (41, 502887), (49, 420783), (77, 267771), (123, 167629), (147, 140261), (231, 89257), (287, 71841), (311, 66297), (451, 45717), (539, 38253), (861, 23947), (933, 22099), (1353, 15239), (1617, 12751), (2009, 10263), (2177, 9471), (3157, 6531), (3421, 6027)]