21519267

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{4903}}^1$

素因数の和:4943

約数の個数: 32

約数和(自身を含む): 37662720

約数和(自身を除く): 16143453

約数列:

[1, 3, 7, 11, 19, 21, 33, 57, 77, 133, 209, 231, 399, 627, 1463, 4389, 4903, 14709, 34321, 53933, 93157, 102963, 161799, 279471, 377531, 652099, 1024727, 1132593, 1956297, 3074181, 7173089, 21519267]

約数ペア:

[(1, 21519267), (3, 7173089), (7, 3074181), (11, 1956297), (19, 1132593), (21, 1024727), (33, 652099), (57, 377531), (77, 279471), (133, 161799), (209, 102963), (231, 93157), (399, 53933), (627, 34321), (1463, 14709), (4389, 4903)]