21382900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2777}}^1$

素因数の和:2809

約数の個数: 72

約数和(自身を含む): 57871296

約数和(自身を除く): 36488396

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 35, 44, 50, 55, 70, 77, 100, 110, 140, 154, 175, 220, 275, 308, 350, 385, 550, 700, 770, 1100, 1540, 1925, 2777, 3850, 5554, 7700, 11108, 13885, 19439, 27770, 30547, 38878, 55540, 61094, 69425, 77756, 97195, 122188, 138850, 152735, 194390, 213829, 277700, 305470, 388780, 427658, 485975, 610940, 763675, 855316, 971950, 1069145, 1527350, 1943900, 2138290, 3054700, 4276580, 5345725, 10691450, 21382900]

約数ペア:

[(1, 21382900), (2, 10691450), (4, 5345725), (5, 4276580), (7, 3054700), (10, 2138290), (11, 1943900), (14, 1527350), (20, 1069145), (22, 971950), (25, 855316), (28, 763675), (35, 610940), (44, 485975), (50, 427658), (55, 388780), (70, 305470), (77, 277700), (100, 213829), (110, 194390), (140, 152735), (154, 138850), (175, 122188), (220, 97195), (275, 77756), (308, 69425), (350, 61094), (385, 55540), (550, 38878), (700, 30547), (770, 27770), (1100, 19439), (1540, 13885), (1925, 11108), (2777, 7700), (3850, 5554)]