19911346

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{15629}}^1$

素因数の和:15658

約数の個数: 24

約数和(自身を含む): 37418220

約数和(自身を除く): 17506874

約数列:

[1, 2, 7, 13, 14, 26, 49, 91, 98, 182, 637, 1274, 15629, 31258, 109403, 203177, 218806, 406354, 765821, 1422239, 1531642, 2844478, 9955673, 19911346]

約数ペア:

[(1, 19911346), (2, 9955673), (7, 2844478), (13, 1531642), (14, 1422239), (26, 765821), (49, 406354), (91, 218806), (98, 203177), (182, 109403), (637, 31258), (1274, 15629)]