20571346972

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{42502783}}^1$

素因数の和:42502809

約数の個数: 18

約数和(自身を含む): 39570091904

約数和(自身を除く): 18998744932

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 42502783, 85005566, 170011132, 467530613, 935061226, 1870122452, 5142836743, 10285673486, 20571346972]

約数ペア:

[(1, 20571346972), (2, 10285673486), (4, 5142836743), (11, 1870122452), (22, 935061226), (44, 467530613), (121, 170011132), (242, 85005566), (484, 42502783)]