21387630

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{64811}}^1$

素因数の和:64832

約数の個数: 32

約数和(自身を含む): 55997568

約数和(自身を除く): 34609938

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 165, 330, 64811, 129622, 194433, 324055, 388866, 648110, 712921, 972165, 1425842, 1944330, 2138763, 3564605, 4277526, 7129210, 10693815, 21387630]

約数ペア:

[(1, 21387630), (2, 10693815), (3, 7129210), (5, 4277526), (6, 3564605), (10, 2138763), (11, 1944330), (15, 1425842), (22, 972165), (30, 712921), (33, 648110), (55, 388866), (66, 324055), (110, 194433), (165, 129622), (330, 64811)]