21695355

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1069}}^1$

素因数の和:1132

約数の個数: 48

約数和(自身を含む): 42063840

約数和(自身を除く): 20368485

約数列:

[1, 3, 5, 9, 11, 15, 33, 41, 45, 55, 99, 123, 165, 205, 369, 451, 495, 615, 1069, 1353, 1845, 2255, 3207, 4059, 5345, 6765, 9621, 11759, 16035, 20295, 35277, 43829, 48105, 58795, 105831, 131487, 176385, 219145, 394461, 482119, 529155, 657435, 1446357, 1972305, 2410595, 4339071, 7231785, 21695355]

約数ペア:

[(1, 21695355), (3, 7231785), (5, 4339071), (9, 2410595), (11, 1972305), (15, 1446357), (33, 657435), (41, 529155), (45, 482119), (55, 394461), (99, 219145), (123, 176385), (165, 131487), (205, 105831), (369, 58795), (451, 48105), (495, 43829), (615, 35277), (1069, 20295), (1353, 16035), (1845, 11759), (2255, 9621), (3207, 6765), (4059, 5345)]