21115260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{117307}}^1$

素因数の和:117322

約数の個数: 36

約数和(自身を含む): 64050168

約数和(自身を除く): 42934908

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 117307, 234614, 351921, 469228, 586535, 703842, 1055763, 1173070, 1407684, 1759605, 2111526, 2346140, 3519210, 4223052, 5278815, 7038420, 10557630, 21115260]

約数ペア:

[(1, 21115260), (2, 10557630), (3, 7038420), (4, 5278815), (5, 4223052), (6, 3519210), (9, 2346140), (10, 2111526), (12, 1759605), (15, 1407684), (18, 1173070), (20, 1055763), (30, 703842), (36, 586535), (45, 469228), (60, 351921), (90, 234614), (180, 117307)]