21006890921

素因数分解:

${\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1\times {\mathrm{1759}}^1$

素因数の和:2049

約数の個数: 32

約数和(自身を含む): 22758067200

約数和(自身を除く): 1751176279

約数列:

[1, 29, 43, 61, 157, 1247, 1759, 1769, 2623, 4553, 6751, 9577, 51011, 75637, 76067, 107299, 195779, 276163, 277733, 411811, 2193473, 3111671, 4613857, 8008727, 11875009, 11942519, 16845943, 133801853, 344375261, 488532347, 724375549, 21006890921]

約数ペア:

[(1, 21006890921), (29, 724375549), (43, 488532347), (61, 344375261), (157, 133801853), (1247, 16845943), (1759, 11942519), (1769, 11875009), (2623, 8008727), (4553, 4613857), (6751, 3111671), (9577, 2193473), (51011, 411811), (75637, 277733), (76067, 276163), (107299, 195779)]