259211421

素因数分解:

$3^4\times 7^2\times {\mathrm{65309}}^1$

素因数の和:65335

約数の個数: 30

約数和(自身を含む): 450443070

約数和(自身を除く): 191231649

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 65309, 195927, 457163, 587781, 1371489, 1763343, 3200141, 4114467, 5290029, 9600423, 12343401, 28801269, 37030203, 86403807, 259211421]

約数ペア:

[(1, 259211421), (3, 86403807), (7, 37030203), (9, 28801269), (21, 12343401), (27, 9600423), (49, 5290029), (63, 4114467), (81, 3200141), (147, 1763343), (189, 1371489), (441, 587781), (567, 457163), (1323, 195927), (3969, 65309)]