21135950

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{463}}^1$

素因数の和:569

約数の個数: 48

約数和(自身を含む): 43497216

約数和(自身を除く): 22361266

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 83, 110, 166, 275, 415, 463, 550, 830, 913, 926, 1826, 2075, 2315, 4150, 4565, 4630, 5093, 9130, 10186, 11575, 22825, 23150, 25465, 38429, 45650, 50930, 76858, 127325, 192145, 254650, 384290, 422719, 845438, 960725, 1921450, 2113595, 4227190, 10567975, 21135950]

約数ペア:

[(1, 21135950), (2, 10567975), (5, 4227190), (10, 2113595), (11, 1921450), (22, 960725), (25, 845438), (50, 422719), (55, 384290), (83, 254650), (110, 192145), (166, 127325), (275, 76858), (415, 50930), (463, 45650), (550, 38429), (830, 25465), (913, 23150), (926, 22825), (1826, 11575), (2075, 10186), (2315, 9130), (4150, 5093), (4565, 4630)]