21992894

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{142811}}^1$

素因数の和:142831

約数の個数: 16

約数和(自身を含む): 41129856

約数和(自身を除く): 19136962

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 142811, 285622, 999677, 1570921, 1999354, 3141842, 10996447, 21992894]

約数ペア:

[(1, 21992894), (2, 10996447), (7, 3141842), (11, 1999354), (14, 1570921), (22, 999677), (77, 285622), (154, 142811)]