205649787

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{27127}}^1$

素因数の和:27175

約数の個数: 24

約数和(自身を含む): 330744576

約数和(自身を除く): 125094789

約数列:

[1, 3, 7, 19, 21, 57, 133, 361, 399, 1083, 2527, 7581, 27127, 81381, 189889, 515413, 569667, 1546239, 3607891, 9792847, 10823673, 29378541, 68549929, 205649787]

約数ペア:

[(1, 205649787), (3, 68549929), (7, 29378541), (19, 10823673), (21, 9792847), (57, 3607891), (133, 1546239), (361, 569667), (399, 515413), (1083, 189889), (2527, 81381), (7581, 27127)]