20210872759

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{463}}^1\times {\mathrm{743}}^1$

素因数の和:1340

約数の個数: 48

約数和(自身を含む): 25974051840

約数和(自身を除く): 5763179081

約数列:

[1, 7, 11, 49, 77, 109, 463, 539, 743, 763, 1199, 3241, 5093, 5201, 5341, 8173, 8393, 22687, 35651, 36407, 50467, 57211, 58751, 80987, 249557, 344009, 353269, 400477, 555137, 566909, 890857, 2408063, 2472883, 3784099, 3885959, 3968363, 6235999, 16856441, 26488693, 27201713, 37496981, 43651993, 185420851, 262478867, 412466791, 1837352069, 2887267537, 20210872759]

約数ペア:

[(1, 20210872759), (7, 2887267537), (11, 1837352069), (49, 412466791), (77, 262478867), (109, 185420851), (463, 43651993), (539, 37496981), (743, 27201713), (763, 26488693), (1199, 16856441), (3241, 6235999), (5093, 3968363), (5201, 3885959), (5341, 3784099), (8173, 2472883), (8393, 2408063), (22687, 890857), (35651, 566909), (36407, 555137), (50467, 400477), (57211, 353269), (58751, 344009), (80987, 249557)]