21045750

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{2551}}^1$

素因数の和:2582

約数の個数: 64

約数和(自身を含む): 57328128

約数和(自身を除く): 36282378

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 25, 30, 33, 50, 55, 66, 75, 110, 125, 150, 165, 250, 275, 330, 375, 550, 750, 825, 1375, 1650, 2551, 2750, 4125, 5102, 7653, 8250, 12755, 15306, 25510, 28061, 38265, 56122, 63775, 76530, 84183, 127550, 140305, 168366, 191325, 280610, 318875, 382650, 420915, 637750, 701525, 841830, 956625, 1403050, 1913250, 2104575, 3507625, 4209150, 7015250, 10522875, 21045750]

約数ペア:

[(1, 21045750), (2, 10522875), (3, 7015250), (5, 4209150), (6, 3507625), (10, 2104575), (11, 1913250), (15, 1403050), (22, 956625), (25, 841830), (30, 701525), (33, 637750), (50, 420915), (55, 382650), (66, 318875), (75, 280610), (110, 191325), (125, 168366), (150, 140305), (165, 127550), (250, 84183), (275, 76530), (330, 63775), (375, 56122), (550, 38265), (750, 28061), (825, 25510), (1375, 15306), (1650, 12755), (2551, 8250), (2750, 7653), (4125, 5102)]