19456855

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{433}}^1$

素因数の和:511

約数の個数: 32

約数和(自身を含む): 27498240

約数和(自身を除く): 8041385

約数列:

[1, 5, 11, 19, 43, 55, 95, 209, 215, 433, 473, 817, 1045, 2165, 2365, 4085, 4763, 8227, 8987, 18619, 23815, 41135, 44935, 90497, 93095, 204809, 353761, 452485, 1024045, 1768805, 3891371, 19456855]

約数ペア:

[(1, 19456855), (5, 3891371), (11, 1768805), (19, 1024045), (43, 452485), (55, 353761), (95, 204809), (209, 93095), (215, 90497), (433, 44935), (473, 41135), (817, 23815), (1045, 18619), (2165, 8987), (2365, 8227), (4085, 4763)]