21542650

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{179}}^1$

素因数の和:303

約数の個数: 48

約数和(自身を含む): 42184800

約数和(自身を除く): 20642150

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 83, 145, 166, 179, 290, 358, 415, 725, 830, 895, 1450, 1790, 2075, 2407, 4150, 4475, 4814, 5191, 8950, 10382, 12035, 14857, 24070, 25955, 29714, 51910, 60175, 74285, 120350, 129775, 148570, 259550, 371425, 430853, 742850, 861706, 2154265, 4308530, 10771325, 21542650]

約数ペア:

[(1, 21542650), (2, 10771325), (5, 4308530), (10, 2154265), (25, 861706), (29, 742850), (50, 430853), (58, 371425), (83, 259550), (145, 148570), (166, 129775), (179, 120350), (290, 74285), (358, 60175), (415, 51910), (725, 29714), (830, 25955), (895, 24070), (1450, 14857), (1790, 12035), (2075, 10382), (2407, 8950), (4150, 5191), (4475, 4814)]