20557306

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{1019}}^1$

素因数の和:1170

約数の個数: 32

約数和(自身を含む): 38776320

約数和(自身を除く): 18219014

約数列:

[1, 2, 7, 11, 14, 22, 77, 131, 154, 262, 917, 1019, 1441, 1834, 2038, 2882, 7133, 10087, 11209, 14266, 20174, 22418, 78463, 133489, 156926, 266978, 934423, 1468379, 1868846, 2936758, 10278653, 20557306]

約数ペア:

[(1, 20557306), (2, 10278653), (7, 2936758), (11, 1868846), (14, 1468379), (22, 934423), (77, 266978), (131, 156926), (154, 133489), (262, 78463), (917, 22418), (1019, 20174), (1441, 14266), (1834, 11209), (2038, 10087), (2882, 7133)]