19803938

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{18371}}^1$

素因数の和:18398

約数の個数: 24

約数和(自身を含む): 37699344

約数和(自身を除く): 17895406

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 154, 539, 1078, 18371, 36742, 128597, 202081, 257194, 404162, 900179, 1414567, 1800358, 2829134, 9901969, 19803938]

約数ペア:

[(1, 19803938), (2, 9901969), (7, 2829134), (11, 1800358), (14, 1414567), (22, 900179), (49, 404162), (77, 257194), (98, 202081), (154, 128597), (539, 36742), (1078, 18371)]