28800261

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{26891}}^1$

素因数の和:26921

約数の個数: 24

約数和(自身を含む): 50341824

約数和(自身を除く): 21541563

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 26891, 80673, 188237, 242019, 457147, 564711, 1371441, 1694133, 3200029, 4114323, 9600087, 28800261]

約数ペア:

[(1, 28800261), (3, 9600087), (7, 4114323), (9, 3200029), (17, 1694133), (21, 1371441), (51, 564711), (63, 457147), (119, 242019), (153, 188237), (357, 80673), (1071, 26891)]