20403040959

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^2\times {\mathrm{128159}}^1$

素因数の和:128217

約数の個数: 54

約数和(自身を含む): 36182259360

約数和(自身を除く): 15779218401

約数列:

[1, 3, 7, 9, 19, 21, 49, 57, 63, 133, 147, 171, 361, 399, 441, 931, 1083, 1197, 2527, 2793, 3249, 7581, 8379, 17689, 22743, 53067, 128159, 159201, 384477, 897113, 1153431, 2435021, 2691339, 6279791, 7305063, 8074017, 17045147, 18839373, 21915189, 46265399, 51135441, 56518119, 119316029, 138796197, 153406323, 323857793, 357948087, 416388591, 971573379, 1073844261, 2267004551, 2914720137, 6801013653, 20403040959]

約数ペア:

[(1, 20403040959), (3, 6801013653), (7, 2914720137), (9, 2267004551), (19, 1073844261), (21, 971573379), (49, 416388591), (57, 357948087), (63, 323857793), (133, 153406323), (147, 138796197), (171, 119316029), (361, 56518119), (399, 51135441), (441, 46265399), (931, 21915189), (1083, 18839373), (1197, 17045147), (2527, 8074017), (2793, 7305063), (3249, 6279791), (7581, 2691339), (8379, 2435021), (17689, 1153431), (22743, 897113), (53067, 384477), (128159, 159201)]