21737331

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{4481}}^1$

素因数の和:4512

約数の個数: 36

約数和(自身を含む): 39853944

約数和(自身を除く): 18116613

約数列:

[1, 3, 7, 9, 11, 21, 33, 49, 63, 77, 99, 147, 231, 441, 539, 693, 1617, 4481, 4851, 13443, 31367, 40329, 49291, 94101, 147873, 219569, 282303, 345037, 443619, 658707, 1035111, 1976121, 2415259, 3105333, 7245777, 21737331]

約数ペア:

[(1, 21737331), (3, 7245777), (7, 3105333), (9, 2415259), (11, 1976121), (21, 1035111), (33, 658707), (49, 443619), (63, 345037), (77, 282303), (99, 219569), (147, 147873), (231, 94101), (441, 49291), (539, 40329), (693, 31367), (1617, 13443), (4481, 4851)]