19704531

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{433}}^1$

素因数の和:651

約数の個数: 32

約数和(自身を含む): 32997888

約数和(自身を除く): 13293357

約数列:

[1, 3, 7, 11, 21, 33, 77, 197, 231, 433, 591, 1299, 1379, 2167, 3031, 4137, 4763, 6501, 9093, 14289, 15169, 33341, 45507, 85301, 100023, 255903, 597107, 938311, 1791321, 2814933, 6568177, 19704531]

約数ペア:

[(1, 19704531), (3, 6568177), (7, 2814933), (11, 1791321), (21, 938311), (33, 597107), (77, 255903), (197, 100023), (231, 85301), (433, 45507), (591, 33341), (1299, 15169), (1379, 14289), (2167, 9093), (3031, 6501), (4137, 4763)]