21657900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{6563}}^1$

素因数の和:6591

約数の個数: 72

約数和(自身を含む): 68370624

約数和(自身を除く): 46712724

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 25, 30, 33, 44, 50, 55, 60, 66, 75, 100, 110, 132, 150, 165, 220, 275, 300, 330, 550, 660, 825, 1100, 1650, 3300, 6563, 13126, 19689, 26252, 32815, 39378, 65630, 72193, 78756, 98445, 131260, 144386, 164075, 196890, 216579, 288772, 328150, 360965, 393780, 433158, 492225, 656300, 721930, 866316, 984450, 1082895, 1443860, 1804825, 1968900, 2165790, 3609650, 4331580, 5414475, 7219300, 10828950, 21657900]

約数ペア:

[(1, 21657900), (2, 10828950), (3, 7219300), (4, 5414475), (5, 4331580), (6, 3609650), (10, 2165790), (11, 1968900), (12, 1804825), (15, 1443860), (20, 1082895), (22, 984450), (25, 866316), (30, 721930), (33, 656300), (44, 492225), (50, 433158), (55, 393780), (60, 360965), (66, 328150), (75, 288772), (100, 216579), (110, 196890), (132, 164075), (150, 144386), (165, 131260), (220, 98445), (275, 78756), (300, 72193), (330, 65630), (550, 39378), (660, 32815), (825, 26252), (1100, 19689), (1650, 13126), (3300, 6563)]